Watch How Did They Build That? Season 4 Episode 7 : Summit & Submerge Online Streaming Site 123Movies

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Title	:	How Did They Build That?
Genre	:	Documentary
Air Date	:	2025-09-14
Season Number	:	4
Episodes Number	:	7
Overview	:	A mountain-top centre defies extreme altitude. A stunning museum is sunk into an old dock. And a 600ft tower with floating gardens rises in Singapore.
Stars	:	Jay Ellis (Self - Host),

January 03, 2021 Season 1 8 Episodes July 10, 2022 Season 2 10 Episodes August 18, 2024 Season 3 10 Episodes July 27, 2025 Season 4 10 Episodes

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