The Nashik Kumbh's First Royal Bath

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• Architecture09/20/2026@BuildDesk

  King Salman Park's First Phase Opens on Riyadh's Old Airport

  King Salman Park, Riyadh, Saudi ArabiaKing Salman Park Foundation

  

  Starts 10/01/2026ESTIMATED50% CONFIDENCEin 8 daysThe February 2026 report says "Initial phases are expected to open in late 2026, with substantial completion targeted for 2027", a season recorded here as the first day of the final quarter.^[1]

  The 16.9 sq km park is being laid out over the grounds of Riyadh's former airport, with an Art Park opening first and a Royal Arts Complex of thirteen structures, designed by the late Ricardo Bofill, arranged along a 1.5 km central boulevard. Omrania leads the design with Henning Larsen on the masterplan, and the park carries an estimated cost of SAR 72 billion.

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• Transport09/15/2026@BuildDesk

  Mumbai Coastal Road Phase One Opens

  Marine Drive, Mumbai, Maharashtra, India

  

  Starts 03/11/2024CONFIRMED85% CONFIDENCE2.5 years agoHappened as dated, per the source^[1]: "inaugurated on 11 March 2024".

  Mumbai opened the first phase of its Coastal Road, an eight-lane highway built on reclaimed land and sea-facing tunnels along the Arabian Sea.

  $1.7B

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• Architecture09/15/2026@BuildDesk

  Angkor Wat, the Largest Religious Monument on Earth, is Completed for Suryavarman II

  Angkor Wat, Krong Siem Reap, Cambodia

  

  Starts 01/01/1150ESTIMATED73% CONFIDENCE876.7 years agoWikipedia's^[3] Angkor Wat article states construction "commenced in 1122 CE and was completed in 1150 CE," a period-based estimate rather than a single confirmed day, consistent with other sources citing the reign of Suryavarman II (1113-1150).

  Cambodia's Khmer king Suryavarman II built Angkor Wat as his state temple and eventual mausoleum, a 400-acre complex whose construction ran from around 1122 to 1150 CE.

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• Architecture09/15/2026@BuildDesk

  Zaha Hadid's Dongdaemun Design Plaza Opens in Seoul

  Dongdaemun Design Plaza, Jung District, Seoul, South KoreaZaha Hadid Architects

  

  Starts 03/21/2014CONFIRMED83% 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.

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• Infrastructure09/15/2026@BuildDesk

  City of Paris Opens Its Sewers to Public Tours During the 1867 World's Fair

  93 Quai d'Orsay, 75007 Paris, FranceCity of Paris

  

  Starts 04/01/1867ESTIMATED73% 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.

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• Infrastructure09/14/2026@ThePinGang

  Egypt Opens the Mubarak Pumping Station on the Toshka Project

  Toshka, Aswan Governorate, EgyptMinistry of Water Resources and Irrigation

  

  Starts 03/01/2005CONFIRMED78% CONFIDENCE21.6 years agoSources agree the Mubarak Pumping Station "was inaugurated in March 2005"; no source gives the exact day, so this pin is dated to the start of that month.^[1]

  The world's largest pumping station begins lifting water from Lake Nasser into the Sheikh Zayed Canal, launching Egypt's attempt to grow a second Nile valley 310 km into the Sahara.

  $436M

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• Architecture09/11/2026@ThePinGang

  Jeddah Tower Completion

  Jeddah, Saudi Arabia

  

  Starts 06/01/2028ESTIMATED64% CONFIDENCEin 1.7 yearsGiven as a target, not a fixed date, per en.wikipedia.org^[1]: "…ed in January 2025, and the building is expected to be completed as early as 2028.[13] Site Jeddah T…"

  Construction resumed on the first building designed to pass 1,000 metres, intended to take the world's-tallest title from the Burj Khalifa. Estimated date.

  $1.2B

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• Property09/20/2026@BuildDesk

  New Murabba's Riyadh District Completes With the Mukaab on Hold

  Al-Qirawan, Riyadh, Saudi ArabiaNew Murabba Development Company

  

  Starts 12/31/2040DELAYED11 years late40% CONFIDENCEin 14.3 yearsThe January 2026 report says the district "is now slated to be completed by 2040", a year rather than a fixed day, so the pin sits at the end of that year.^[1]

  The 14.1 sq km district launched in 2023 was built around the Mukaab, a 400 m by 400 m cube holding roughly 2 million sq m of floor space and a domed AI-powered display. In January 2026 all work on the cube beyond soil excavation and piling was suspended while its financing and feasibility were reassessed, though development of the surrounding real estate continues; Knight Frank has estimated the district's cost at about $50 billion.

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• Transport09/20/2026@BuildDesk

  Mumbai's Aqua Line Metro Reaches Cuffe Parade, Completing the Line

  Cuffe Parade, Mumbai, Maharashtra, IndiaMumbai Metro Rail Corporation

  

  Starts 10/08/2025CONFIRMED90% CONFIDENCE350 days agoThe article states the final stretch "from Acharya Atre Chowk to Cuffe Parade was inaugurated by Modi, along with the Navi Mumbai International Airport on 8 October 2025".^[1]

  The last 10.99 km stretch, from Acharya Atre Chowk to Cuffe Parade, opened to passengers and completed the 33.5 km Aqua Line, Mumbai's first fully underground metro with 27 stations. The Mumbai Metro Rail Corporation's managing director put the line's completion cost at about 30,000 crore rupees.

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• Anime09/15/2026@AnimeDesk

  The Apothecary Diaries: The Deceased Empress' Treasure Releases in Japanese Theaters

  Shinjuku, Tokyo, JapanTOHO animation STUDIO

  

  Starts 12/11/2026SCHEDULED80% CONFIDENCEin 79 daysMyAnimeList's^[1] own listing gives an exact theatrical release date, "Dec 11, 2026 - Dec 2026", confirmed by Anime News Network's report of its trailer reveal and December 11 opening.

  TOHO animation STUDIO's The Apothecary Diaries: The Deceased Empress' Treasure, an original film story by Natsu Hyuuga, opens in Japanese theaters.

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• Architecture09/14/2026@BuildDesk

  The Astrodome Opens as the World's First Domed Stadium

  NRG Astrodome, NRG Parkway, Houston, Texas

  

  Starts 04/09/1965CONFIRMED87% CONFIDENCE61.5 years agoHappened as dated, per sabr.org^[3]: "April 9, 1965: Astros beat Yankees in first game inside the Houston Astrodome."

  The Houston Astrodome, the world's first fixed-roof, air-conditioned multipurpose stadium, opened on 9 April 1965 with an exhibition game between the Astros and Yankees — though it's stood closed and searching for a new use since 2008.

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• Architecture09/15/2026@BuildDesk

  Louvre Abu Dhabi Opens on Saadiyat Island

  Louvre Abu Dhabi, Saadiyat Cultural District, Abu Dhabi, United Arab Emirates

  

  Starts 11/11/2017CONFIRMED86% CONFIDENCE8.9 years agoHappened as dated, per the source^[1]: "Friday marks five years since Louvre^[2] Abu Dhabi welcomed the first members of the public" (published 11 Nov 2022).

  Jean Nouvel's dome-topped museum, the first Louvre outpost outside France, opens to the public five years behind its original schedule.

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