Our Pick
Posted on @rawstates
Fermilab
1967
Batavia, Illinois
CramBetter.com · CC BY 4.0 · Wikimedia Commons
The Tevatron collided protons under the prairie here for a quarter century and found the top quark in 1995. The lab keeps a herd of bison on the ring's infield, started by its first director as a sign the land above the physics was safe, and the herd has outlived the accelerator.
That was 1 of the hidden places.
Location: historic site
This place has its own thread on r/rawstates
Read what people are saying about it, or add your own.