References 585% CONFIDENCEOverall confidence: 85%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%youtube.com/watch?v=2gwrSaNSl00youtube.com· Posted Sep 14, 2026· Starts Dec 31, 2012 ✓· 26% of score
Happened as dated, per the source: the tower, "constructed at an estimated cost of USD $16BN," was completed in 2012.
- [2]95%Makkah Clock Tower – KONE Corporation
Opened primary project source for sourced buildout metrics and project timeline; researched 2026-10-29.[1]
- [3]70%Construction of the World’s Largest Clock | Mega Projects | FD Engineeringyoutube.com· Added Sep 15, 2026· 26% of score
FD Engineering documentary on the Mecca Clock Tower’s construction, covering the same completed landmark as this pin.[1]
- [4]82%Abraj Al Bait – Wikipediaen.wikipedia.org· Published Jun 1, 2026· 17% of score
Wikipedia's infobox lists the tower as completed in 2011 with the complex "officially opened in 2012" at a cost of "US$15 billion," broadly matching the pin's stored end-of-2012 date, though its $15BN figure is slightly below the pin's stated $16BN.
- [5]75%Saudi Arabia Built a $16BN Clock Tower – The B1Mtheb1m.com· Published Sep 25, 2024· 2% of score
The B1M's own video title, "Saudi Arabia Built a $16BN Clock Tower," matches the pin's stated cost figure exactly, though the domain could not be verified for direct fetch to confirm the specific completion date.
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