This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This park contains a number of standing stones meant to heal and inspire.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

In the early 1800s, surgery was also a show.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.