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Frank Gehry's Guggenheim Abu Dhabi Opens on Saadiyat Island
Solomon R. Guggenheim FoundationCulture District, Abu Dhabi, Abu Dhabi Emirate, United Arab Emirates
CONFIRMED88% CONFIDENCEin 79 daysAbu Dhabi's Department of Culture and Tourism named 11 December 2026 in a joint announcement with the Guggenheim[1] Foundation in late July 2026; the foundation's own press release carries the date.Twenty years after it was announced, the Guggenheim Abu Dhabi opens on 11 December 2026 as the largest museum in the Guggenheim family - about 80,000 square metres, against roughly a quarter of that in New York. Frank Gehry arranged it around a single tall atrium with galleries threaded between ten sculptural cones, nine sheathed in stainless steel mesh and one in onyx and glass, so the roofline reads as a cluster of towers from across the Culture District.0.78LACMA Opens Peter Zumthor's David Geffen Galleries
5905 Wilshire Boulevard, Mid-Wilshire, Los Angeles, CA 90036, United StatesLos Angeles County Museum of Art
CONFIRMED88% CONFIDENCE157 days agoLACMA's[1] own press release names the day: the David Geffen Galleries "open April 19". The museum is announcing its own building, so the date needs no inference.LACMA's permanent collection moved into a new home on 19 April 2026: a 275-metre curved building of glass and concrete that steps over Wilshire Boulevard on splayed piers, lifting 10,220 square metres of galleries some nine metres above the street. It completes a campus rebuild two decades in the making, replacing four of the museum's ageing buildings with a single level where the collection is shown without a fixed route through it.0.66City of Paris Inaugurates La Canopée at Les Halles
CONFIRMED80% CONFIDENCE10.5 years agoFrench outlets Batiactu[3] and Ingélux, and Wikipedia's[2] French edition, date the Canopée's public inauguration to April 5, 2016.Paris unveiled La Canopée, a sweeping glass-and-steel roof capping the decade-long, roughly 800 million euro renovation of the Forum des Halles shopping and transit hub. Mayor Anne Hidalgo led the inauguration of the structure designed by architects Patrick Berger and Jacques Anziutti.0.64One Thousand Museum Completes in Miami
One Thousand Museum, 1000 Biscayne Boulevard, Miami, Miami-Dade County, Florida, 33132, United StatesZaha Hadid Architects
CONFIRMED90% CONFIDENCE7.2 years agoHappened as dated, per the source[1]: "the tower has received its TCO (temporary certificate of occupancy), meaning that it is one step closer to officially welcoming residents."Zaha Hadid Architects' exoskeleton-clad One Thousand Museum tower finished construction on Miami's Biscayne Boulevard, one of the late architect's last works.0.64Els Quatre Gats Opens in Barcelona's Casa Martí
CONFIRMED75% CONFIDENCE129.3 years agoWikipedia[1] states the day outright: "The café opened on 12 June 1897 in the celebrated Casa Martí".The café that became the meeting room of Catalan modernisme opened on 12 June 1897 in the Casa Martí, a Puig i Cadafalch building in the Gothic Quarter. It lasted only six years in its first run, but in them it hosted Picasso's first solo exhibition and the circle around Rusiñol and Casas - and he drew its menu card.0.63Colosseum's Tod's-Funded Facade Restoration Unveiled After Three Years
CONFIRMED90% CONFIDENCE10.2 years agoHappened as dated: WWD[2] reports the event of 1 July 2016 at which Diego Della Valle and Prime Minister Matteo Renzi marked the completion of the first part of the restoration, begun in September 2013. The whole project was then expected to run to 2020-2022.A three-year, Tod's-funded restoration of the Colosseum's facade - the first phase of a longer project - wrapped up with a ceremony attended by Italy's prime minister, revealing the monument's stone cleaned of two millennia of grime.0.63City of Paris Opens Its Sewers to Public Tours During the 1867 World's Fair
ESTIMATED73% CONFIDENCE159.5 years agoThe Paris[3] sewer museum's own history page states tours "began in 1867, during the World's Fair" without naming an exact day, so the pin uses the Fair's opening date.During the 1867 Exposition Universelle, Paris opened Baron Haussmann's newly rebuilt sewer network to public tours for the first time, turning Eugène Belgrand's engineering into a civic showcase.0.63Real Madrid's Rebuilt Bernabéu Finally Wraps Up
DELAYED60% CONFIDENCE1.7 years agoThe reopening slipped past several earlier target dates before the stadium was substantially finished going into the 2024/25 season. Happened as dated, per the source[1]: "close to €1.347 billion" had been spent by mid-2025 on the finishing work.Real Madrid's four-year overhaul of the Santiago Bernabéu — a new steel facade, retractable roof and a fully removable pitch — ran years past its original target before wrapping up.€1.8B0.63Zaha Hadid's Dongdaemun Design Plaza Opens in Seoul
CONFIRMED83% CONFIDENCE12.5 years agoHappened as dated, per the source[1]: "it was officially inaugurated on 21 March 2014."Zaha Hadid Architects' fluid, BIM-engineered Dongdaemun Design Plaza opened to the public in Seoul, South Korea, transforming a former stadium site into a landmark arts and design hub.0.63Café Gerbeaud Opens on Vörösmarty Square
Gerbeaud Confectionary, 7-8, Vörösmarty square, Lipótváros, 5th district, Budapest, Central Hungary, 1051, HungaryCafé Gerbeaud
ESTIMATED75% CONFIDENCE167.7 years agoThe article states it was "opened in 1858" and gives no month or day, so the pin sits on that year's last day.[1]The coffeehouse on Vörösmarty tér opened in 1858 and grew into one of the largest and grandest in Europe, its rooms panelled and chandeliered on a scale that belongs to the Habsburg city. It gave its name to the Gerbeaud slice and remains the fixture by which Budapest's café tradition is measured.0.63The Venice Architecture Biennale Opens
SCHEDULED85% CONFIDENCEin 227 daysLa Biennale[1][2] di Venezia gives the 2027 International Architecture Exhibition as 8 May to 21 November 2027, with a pre-opening on 6 and 7 May. The pin's exclusive end is the following midnight UTC.The 2027 International Architecture Exhibition runs 8 May to 21 November in Venice, curated by Wang Shu and Lu Wenyu under the theme 'Do Architecture'.0.62Gustave Eiffel’s Company Completes the Eiffel Tower
CONFIRMED80% CONFIDENCE137.5 years agoHistory.com[3] and the Eiffel Tower’s own history page date the structure’s completion and dedication ceremony to 31 March 1889.Gustave Eiffel’s engineering firm finished the Eiffel Tower in Paris after just over two years of construction, built as the entrance arch for the 1889 Exposition Universelle. The 300-metre iron lattice tower was the tallest man-made structure in the world at the time.0.62
