Heritage Open Days 2026: UK & Europe dates guide

The 2026 European Heritage Days calendar, country by country

There is no single European date: each country sets its own September weekend, sometimes two, often around the second or third weekend. The dates below are those announced by the national bodies, verified on 28 August 2026. The shared theme of the edition, announced by the Council of Europe, is « Heritage at Risk: Revive, Resist, Reimagine »: it questions how monuments stay resilient in the face of climate, conflict and neglect — and how they can be given a new life. England’s Heritage Open Days run 11-20 September, and Open House Festival 12-20 September in London; both are free.

A few dates remain to be confirmed: Slovakia, Croatia, Denmark, Estonia, Latvia, Malta, Cyprus, Iceland, Slovenia and Bulgaria take part in the European programme but had not announced a national calendar by 28 August 2026. Ireland, meanwhile, already held its edition in August (15-23/08), under the Irish presidency of the Council of Europe’s Committee of Ministers, which launched the year’s theme.

France: the 19-20 September weekend, themed around photography

The 43rd French edition: 19 and 20 September 2026

Free, booking sometimes required 19-20/09 + school Friday 18/09 Mild September weather 1,500 venues open in Paris

The 43rd French edition takes place on Saturday 19 and Sunday 20 September 2026, according to the Ministry of Culture’s press kit published on 27 August. The national theme, « Photography Heritage« , celebrates the bicentenary of Nicéphore Niépce’s first permanent photograph (1826); it adds to the European theme « Heritage at Risk: Revive, Resist, Reimagine », as the official French Heritage Days website reminds us. The day before, Friday 18 September, the school programmes « Les Enfants du Patrimoine » and « Levez les yeux ! » offer more than 400 free activities, according to the CAUE network.

In Paris, more than 1,500 venues open their doors, according to Paris Select Book. Ministries are visitable by reservation: Matignon, the Palais-Royal (Culture), Beauvau (Interior), Brienne (Armed Forces), Bercy (Economy) or the Quai d’Orsay. The Élysée Palace, the Senate and the National Assembly complete the institutions circuit, with very limited capacity. As for rare openings: the Petite écurie du roi in Versailles and its Sculptures and Casts gallery, Saturday only, free with booking (20 people per slot), reports Sortira Paris; the Maison du Danemark opens its 7th floor over the Champs-Élysées, free without booking from 12 pm to 6 pm; the BnF, the Louvre, the National Archives and the City of Paris museums (Carnavalet, Zadkine, Bourdelle) also take part.

Highlights

• Nearly all 18,500 venues free in 2025, an estimated 7.4 million visits
• Exceptional openings: ministries, Élysée Palace, Petite écurie du roi, Maison du Danemark
• « Photography Heritage » theme for the bicentenary of photography

Pixidia tip: the most coveted bookings sell out within hours. The Élysée opens its slots about 10 days before the event: 10,000 places go in under 30 minutes, according to The Knowledge Nuggets. If nothing is left, the Maison Élysée (88 rue du Faubourg-Saint-Honoré) is free to visit all year round without booking, just like the Maison du Danemark during the weekend.

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England: ten days of open doors, from 11 to 20 September

Heritage Open Days: 10 days, 100% free

Everything free 11-20 September Mild, changeable climate 5,879 events in 2025

Coordinated by the National Trust, the Heritage Open Days festival runs for ten days, from 11 to 20 September 2026, with one simple rule: every event is free, according to the official festival website. The 2026 campaign theme, « Everyday Histories », presented by Findmypast, celebrates ordinary lives: factories, workhouses, high streets, kitchens and schools. In 2025, the festival counted 5,879 free events and 1.3 million visits, and 42% of visitors say they would not have come if entry had been paid, according to the festival’s impact report.

The 2026 programme goes for the unusual: swimming in Peterborough’s art-deco lido for its 90th birthday, the working Victorian printing press at the Bodleian in Oxford, the Dover tunnels, the East Anglian Air Ambulance base, Acorn Bank’s watermill. In London, the Open House Festival (12-20 September, 600+ venues) books 10 Downing Street by ballot — entries closed on 17 August, tour on Sunday 13 September — while the BT Tower is bookable directly from 19 August for its 19-20 September tours, with a suggested donation of £7, details Open City. Regulars’ trick, reported by blogger Lifestyle Reviewer: treat the booking opening like a concert on-sale and target buildings « with no other way in » (signal boxes, rescue bases), which are often fully booked by late August, as is Badminton House.

Highlights

• 10 days of free entry, Europe’s longest window
• Unusual venues: art-deco lido, Victorian press, tunnels, bunkers
• Open House London in parallel, with ballot for Downing Street

Pixidia tip: treat the booking opening like a gig presale — the most sought-after buildings fill within hours, and 10 Downing Street was already allocated by ballot in August. Missed it? Our guide to the Open House London 2026 buildings lists the quieter gems with no other way in. And if you’re adding the French edition on 19-20 September: ETIAS still isn’t in service, so UK citizens just hit the new EES border checks when arriving in Schengen.

Germany: Sunday 13 September, the country of monument networks

Tag des offenen Denkmals: Bamberg, « Denkmalhauptstadt » 2026

Free entry Sunday 13 September Pleasant late season 9,000 offers in 2025

The Tag des offenen Denkmals (Open Monuments Day) takes place on Sunday 13 September 2026, coordinated by the Deutsche Stiftung Denkmalschutz, with Berlin in an extended version on 12-13 September. The 2026 motto, « NetzWERKE: Denkmale & Infrastruktur« , honours the monuments that form networks: bridges, stations, water towers, power plants, water and sanitation works, according to the foundation’s statement. The national opening is held in Bamberg, a UNESCO-listed city, with the cathedral, the town hall on the bridge and the Alte Hofhaltung on the programme.

The 2025 edition gives the scale of the event: more than 9,000 offers across about 6,500 monuments in 2,300 towns, and several million visitors, with local records such as 38,000 visitors to Berlin’s ICC. For 2026, Essen offers a public dig at the Kattenturm, Zwickau opens its water towers, Düsseldorf about forty free-entry sites, and the official photo contest runs until 16 September, according to the foundation’s programme. It’s also the chance to discover 20th-century architecture and industrial heritage, less publicised than castles.

Highlights

• Original theme: infrastructure, bunkers, water towers and stations
• National opening in Bamberg, a UNESCO city
• A single day, ideal for a long weekend

Pixidia tip: the crowds concentrate on one day, so book your accommodation in and around Bamberg early. To chain the month’s two German events — Tag des offenen Denkmals (13/09) and Berlin Art Week — check our Berlin Art Week 2026 guide.

Netherlands, Belgium, Luxembourg, Switzerland: two weekends to choose from

Between 12-13 and 19-20 September, a very open corner of Europe

Free, donations sometimes suggested 12-13 or 19-20 September Late-summer mildness 6,000 monuments in the Netherlands

The Netherlands celebrates the 40th edition of Open Monumentendag on 12-13 September 2026, with a national opening on Friday 11 September in Lelystad (Flevoland), host province for a double jubilee, according to the official Dutch website. About 6,000 monuments open for free, including forts, bunkers and reconstructions: the 2026 theme, « resilient heritage in uncertain times », is about how buildings withstand climate change. The 2025 edition drew about 1.8 million visitors, with Amsterdam leading (53,000).

Belgium organises three separate events: Wallonia on 12-13 September (« Heritage puts on a show »), Flanders on Sunday 13 September with Kortrijk as host city and 890 venues open across 200 towns — a 30-year record, according to VRT — and Brussels on 19-20 September, on the theme « Our landscape, our heritage », coordinated by urban.brussels. The Brussels weekend therefore coincides with France: two capitals an hour apart by train, a solid argument for a quick round trip. Luxembourg spreads around the 19-20 September reference weekend, with visits from the 13th, to be checked on the national programme. Finally, Switzerland holds its 33rd edition on 12-13 September, on the theme « At risk? »: more than 400 free events, from the Tour de Champel in Geneva to the Ballenberg open-air museum, according to the Swiss national website.

Highlights

• Two possible weekends: 12-13/09 (Netherlands, Wallonia, Flanders, Switzerland) or 19-20/09 (Brussels, Luxembourg)
• Flanders: 890 venues, including ongoing restoration sites
• Brussels aligned with France: ideal for a cross-border weekend

Pixidia tip: in the Netherlands, the bike is your best ally: many municipalities lay out loops between open monuments. In Kortrijk (Flanders), the host city, accommodation fills up fast: book as soon as the programme is confirmed.

Italy and Greece: the last weekend of September, between €1 and total free entry

Giornate Europee del Patrimonio and the Greek heritage days: 26-27 September

Italy: €1 on Saturday evening; Greece: free 26-27 September (Greece from the 25th) Mediterranean still warm 1,000+ events in Italy

Italy celebrates its Giornate Europee del Patrimonio on 26-27 September 2026 with more than 1,000 events announced, on the theme « Proteggere il patrimonio. Rinnovare, resistere, reinventare », according to the European programme. Its special feature: on Saturday evening, state museums open at the symbolic price of €1, the Italian equivalent of night openings. In Rome, the monumental complex of San Michele offers daytime and evening openings; in Aquileia, the archaeological digs are open from 25 to 27 September, with experimental archaeology workshops.

Greece offers one of the year’s best opportunities: on Saturday 26 and Sunday 27 September, entry is free at every public museum and archaeological site, including the Acropolis, according to the Greek Ministry of Culture. The Greek European Heritage Days run from 25 to 27 September. It’s the perfect moment to combine antiquities and late season: still-summery temperatures, smaller crowds outside the free sites. To prepare, our Colosseum ticket comparison: standard, arena floor or underground gives useful benchmarks, transferable to a late-September weekend.

Highlights

• €1 evening opening in Italian state museums on Saturday 26/09
• Greece: all public sites free on 26-27/09, Acropolis included
• Long weekend possible 25-27/09 (Greece) or 26-27/09 (Italy)

Pixidia tip: Greek free entry draws the crowds: aim for morning slots or lesser-known sites beyond Athens (Delphi, Epidaurus, Thessaloniki). In Italy, Saturday’s €1 evening opening pairs perfectly with Sunday’s free visits.

The rest of Europe: from Austria to Czechia

Austria almost closes the season with its Tag des Denkmals on Sunday 27 September 2026, on the theme « Monuments, a value for all », broken down into seven values including the reuse of buildings as a climate lever, according to the Bundesdenkmalamt. Most monuments are visitable without registration; reserved slots open on 12 September.

Spain runs on autonomous communities: Navarre from 26 September to 4 October, Catalonia from 9 to 11 October, the Basque Country (Gipuzkoa, Bizkaia, Araba) in October, according to regional programmes. Portugal stretches its Jornadas Europeias do Património from 18 to 27 September, from Oeiras to Lisbon (Casa dos Bicos), says the Directorate-General for Cultural Heritage. Czechia is the only country covering the whole month: from 1 to 30 September, with a national opening in Chrudim on 11-13 September and Prague celebrating all month, according to Visit Czechia. Our Mala Strana, Prague experiences pair well with a September heritage visit to Prague.

Poland offers two weekends (18-20 and 26-27 September), including Toruń’s Museum Night on the 26th. Hungary opens Budapest on 19-20 September: the ELTE university library, the edition’s gem, is visitable in Hungarian, German and English, and the Aquincum museum is free on the 19th. Lithuania (17-27/09), Romania (10-20/09, 34th edition) and Montenegro (until 25/09) round out central Europe. In the Nordics, Sweden holds its Kulturarvsdagen from 11 to 13 September, Norway its Kulturverndagene from 5 to 13 (600+ events in 2025), and Finland spreads events across all of September. For Budapest, our selection of guided tours of the Jewish Quarter usefully completes a heritage weekend.

Finally, the 2027 calendar is already announced: « Beneath the Surface: Exploring Europe’s Hidden Heritage« , according to the European Heritage Days website. A good reason to start dreaming about next September already.