Uncovering America's Underwater City

Mark Rober · 20:47

30,153,057 views · 391,070 likes · Oct 11, 2025

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Thanks to Global SubDive for helping us…

It’s wild how oblivious we can be to what’s hidden right beneath the water. Learn to embrace failure while having tons of fun with CrunchLabs, now with 2 FREE boxes at: https://crunchlabs.com/Lake

Get your CrunchLabs box today:
Build Box for kids click here: http://crunchlabs.com/Lake
Hack Pack for teens and adults click here: https://crunchlabs.com/LakeHP

Thanks to Global SubDive for helping us…

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