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Emaar Properties Opens Burj Khalifa as the World's Tallest Building
CONFIRMED90% CONFIDENCE16.7 years agoGuinness World Records[2] and The National both confirm the official opening ceremony took place on January 4, 2010.Emaar Properties officially opened the 828-meter Burj Khalifa in Dubai, timed to the fifth anniversary of Sheikh Mohammed bin Rashid Al Maktoum's accession to power. The tower took the world's-tallest-building title from Taipei 101 by a record margin.0.68Pinnacle SkyTower Opens in Toronto
SCHEDULED76% CONFIDENCE1 day agoGiven as scheduled, per the source[1]: Pinnacle SkyTower "will be Canada's tallest residential building when it opens in the fall of 2026."Pinnacle SkyTower, a 106-storey, 352m tower on Toronto's waterfront, becomes Canada's tallest building, taking the title from One Bloor West.0.67Leeza SOHO Opens with the World’s Tallest Atrium
CONFIRMED90% CONFIDENCE6.8 years agoThe B1M’s March 2018 video and article described the tower as if newly finished, but construction was still ongoing (topping out was only September 2017); Zaha Hadid[4] Architects’ own announcement and multiple design outlets confirm Leeza SOHO actually opened on 19 November 2019. Happened as dated, per the source[1]: "zaha hadid architects completes 'leeza SOHO tower' in beijing".Zaha Hadid Architects’ twisting Beijing skyscraper opened with a 194-metre atrium spanning two towers built around a live subway line.0.66Tokyo Skytree Opens to the Public
CONFIRMED72% CONFIDENCE14.3 years agoHappened as dated, per the source[1]: "Tokyo Skytree was completed on Leap Day, 29 February 2012, with the tower opening to the public on 22 May 2012".Tokyo Skytree, the world's tallest tower at the time and an earthquake-engineering showcase, opened to visitors in Sumida, Tokyo.¥65B0.66Austin Light Rail Breaks Ground on Its First Line
Guadalupe Street at Republic Square, downtown Austin, TX 78701, United StatesAustin Transit Partnership
ESTIMATED50% CONFIDENCEin 100 daysATP chief executive Greg Canally says in the agency's own announcement that "we are on track to begin construction in 2027", a year with no day attached.[1]Austin Transit Partnership starts building a 9.8-mile line with 15 stations, running three ways out of downtown and crossing Lady Bird Lake on a new bridge. The board picked the Stacy Witbeck-Sundt joint venture Austin Rail Constructors in February 2026; the first trains are due in 2033 and the cost is put above $8.2 billion.0.65One Za'abeel Opens With the World's Longest Cantilever
CONFIRMED80% CONFIDENCE2.6 years agoHappened as dated, per the source[1]: "The development was completed in December 2023 and officially opened on 10 February 2024."Dubai's One Za'abeel opened to the public, its twin towers joined by The Link, a 230-metre skybridge that went on to set the Guinness World Record for longest cantilevered building.AED 3.7B0.64Mjøstårnet Becomes the World's Tallest Timber Tower in Brumunddal
Mjøstårnet, Brumunddal, Ringsaker, Norway
CONFIRMED90% CONFIDENCE7.5 years agoWikipedia[4] and Norway Today state Mjøstårnet was completed in March 2019, with its official opening on March 15, 2019.At 85.4 meters and 18 storeys, Mjøstårnet in Brumunddal, Norway opened as the world's tallest timber building, built from engineered glue-laminated wood instead of steel or concrete.0.64Torre Reforma Becomes Mexico City's Tallest Building
Torre Reforma, Avenida Paseo de la Reforma 483, Cuauhtémoc, Mexico City, Mexico
ESTIMATED69% CONFIDENCE10.7 years agoHappened as dated, per the source[1]: "Upon completion in 2016 it became the tallest skyscraper in Mexico City".A 57-storey concrete-and-glass tower on Paseo de la Reforma, engineered to ride out centuries of predicted earthquakes, topped out as Mexico City's tallest building.0.64Salesforce Tower Opens as San Francisco's Tallest Building
Salesforce Tower, 415 Mission Street, Rincon Hill, Financial District, San Francisco, California, 94105, United StatesSalesforce…
CONFIRMED90% CONFIDENCE8.7 years agoHappened as dated, per the source[1]: "The building's first tenants began moving in on January 8, 2018."Salesforce's first employees moved into San Francisco's new 1,070-foot Salesforce Tower, the anchor of the Transbay district and the city's tallest skyscraper.0.63432 Park Avenue Opens on Manhattan's Billionaires' Row
CONFIRMED84% CONFIDENCE10.8 years agoHappened as dated, per the source[1]: "Year of Completion: 2015."Harry Macklowe's 432 Park Avenue, then the world's tallest residential tower, officially completed in Manhattan in December 2015 after four years of construction.0.63Ciel Dubai Marina Opens as World's Tallest Hotel
CONFIRMED89% CONFIDENCE312 days agoHappened as dated, per the source[1]: "The first guests have checked into Ciel Dubai Marina, the world's tallest hotel."A 377-metre, 1,004-room supertall hotel on Dubai Marina's waterfront opened as the world's tallest hotel, its curved concrete form engineered to shed wind loads on a coastal site.0.63Frankfurt's Omniturm, an Early Swing-Use Skyscraper, Opens
CONFIRMED81% CONFIDENCE6.8 years agoHappened as dated, per the source[1]: the tower "was completed and inaugurated in 2019," with reporting placing that milestone in winter of that year.Tishman Speyer's Omniturm opened in Frankfurt as Germany's first true mixed-use high-rise, with separate lobbies letting offices and apartments share the same elevator core without ever mixing.0.63
