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Colosseum'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.0.72Notre-Dame de Paris Restoration Complete
Paris, France
ESTIMATED63% CONFIDENCEin 3.7 yearsGiven as a target, not a fixed date, per the pin description: "…opened to worshippers in December 2024. Estimated date.…"Work continues on the exterior, flying buttresses and sacristy after the cathedral reopened to worshippers in December 2024. Estimated date.$739M0.71Christ Church Cathedral Reinstatement Targets 2027 Completion
ChristChurch Cathedral, Cathedral Square, Christchurch, New Zealand
ESTIMATED57% CONFIDENCEin 1.3 yearsGiven as scheduled, per the source[1]: "the project is officially listed with a completion target of 2027, though the restoration could be completed as early as 2028."Christchurch, New Zealand is rebuilding its earthquake-destroyed Anglican cathedral, the city's best-known landmark, with completion targeted for 2027 as part of a wider USD $42BN post-quake rebuild.$42B0.68Montreal's Olympic Stadium Roof Targeted to Reopen in 2028
Stade olympique, 4545 Avenue Pierre-De Coubertin, Montreal, Quebec, Canada
SCHEDULED80% CONFIDENCEin 2.3 yearsGiven as scheduled, per the source[1]: "expected to be completed by 2028".Quebec is replacing the perpetually troubled retractable roof of Montreal’s 1976 Olympic Stadium with a new fixed structure, targeting a 2028 reopening.C$870M0.67The Pergamonmuseum's North Wing Reopens With the Pergamon Altar
CONFIRMED93% CONFIDENCEin 254 daysThe Staatliche Museen zu Berlin announced the date itself - "Opening on June 4th 2027" - and the Stiftung Preussischer Kulturbesitz[2] put out a matching press release on 4 May 2026.Berlin's Pergamonmuseum comes back in stages, and the first of them lands on 4 June 2027: the North Wing and the northern central building reopen, putting the Pergamon Altar back on public view and giving the Museum für Islamische Kunst two full floors. The museum has been under renovation since 2013 as part of the Museumsinsel master plan, and the South Wing stays shut after this - it is not expected back until around 2037.0.66Notre-Dame de Paris Reopens After 2019 Fire
Notre-Dame de Paris, Paris, France
CONFIRMED89% CONFIDENCE1.8 years agoHappened as dated, per the source[1]: "The reopening ceremony began just after 19:00 CET with the ringing of the cathedral bells for the first time since 2019".Notre-Dame Cathedral reopened to worshippers and visitors on December 7, 2024, five and a half years after a fire gutted its roof and spire.0.66Eiffel Tower's Rust-Fighting Repaint Unveiled for the Paris Olympics
CONFIRMED90% CONFIDENCE2.3 years agoHappened as dated, per the source[1]: "The Eiffel Tower is sporting a new set of rings — the five Olympic rings, to be exact".Paris unveiled the Eiffel Tower in its original 1907 gold-brown shade in June 2024, weeks before hosting the Olympic Games, after a repaint cut back from about a third of the ironwork to roughly 5 per cent.$60M0.65Palace of Westminster Restoration Phase One
Palace of Westminster, London, United Kingdom
ESTIMATED68% CONFIDENCEin 6.3 yearsA target, per the source[1]: the preliminary phase is recommended to run "to 2032", pending a final delivery decision by 2030.A £3BN, seven-year preliminary phase to repair the crumbling Palace of Westminster, before Parliament chooses between fully vacating the building or working around it.£3B0.65Real 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.€1.8B0.65Inside Big Ben's Makeover
Palace of Westminster, Westminster, London, United Kingdom
CONFIRMED90% CONFIDENCE3.9 years agoHappened as dated, per the source[1]: "the chimes of Big Ben returned to regular service for the first time since August 2017" on Remembrance Sunday, 13 November 2022.After a five-year, £80M restoration, the bells of Big Ben return to regular service in London’s Elizabeth Tower for the first time since 2017.£80M0.64Marmaray Tunnel Excavators Uncover Constantinople's Theodosian Harbor
Yenikapı, Fatih, Istanbul, Turkey
ESTIMATED62% CONFIDENCE20.9 years agoAccounts of the Marmaray excavation (Grand Sirkeci[3] Hotel's history page and the Harvard 'Urban Imagination' exhibit) place the discovery of the silted-up harbor at Yenikapı in November 2005, without a more precise day recorded.Digging for Istanbul's Marmaray rail tunnel at Yenikapı, workers strike the silted-up remains of the Theodosian Harbor, a Byzantine-era port that would go on to yield 37 shipwrecks and roughly 100,000 artifacts.0.64Ptolemy II Completes the Lighthouse of Alexandria
Qaitbay Citadel, Alexandria, Egypt
ESTIMATED67% CONFIDENCE2305.7 years agoAncient sources place completion under Ptolemy II around 280 BCE, per the World History[3] Encyclopedia and Britannica; the exact year is not precisely recorded.The Pharos of Alexandria, one of the Seven Wonders of the Ancient World, was completed under Ptolemy II to guide ships into the city's Great Harbor. Commissioned by Ptolemy I and built by the architect Sostratus of Cnidus, the tower stood for over 1,600 years.0.62
