Our Pick
Posted on @rawstates
Foster City built on bay mud
1960
Foster City, California
Pi.1415926535 · CC BY-SA 3.0 · Wikimedia Commons
A developer bought a hay-farming island in the bay and pumped enough fill onto it to make a city of forty thousand, streets, lagoons and a school district raised out of the mud on a grid. The ground it stands on is young enough that earthquake maps still shade it differently from everything around it.
That was 1 of the hidden places.
Location: approximate area
This place has its own thread on r/rawstates
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