Our Pick
Posted on @rawstates
Bay Bridge opens
1936
San Francisco Bay, California
InvadingInvader · CC BY-SA 4.0 · Wikimedia Commons
Opened six months before the Golden Gate and carrying far more traffic, with a tunnel bored through Yerba Buena Island. Its eastern span partially collapsed in the 1989 earthquake and was replaced.
That was 1 of the hidden places.
Location: historic site
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