The preserved remains of the former Milwaukee County Hospital for the Insane are hidden in the wooded grounds of County Park.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

All of Chicago's wood-paved streets are long gone but two alleys remain.

Millions of numbers carved in glass represent the tattoos forced upon victims.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

One of the now-less-hidden floral gems of the "Emerald Necklace."

The Boston square dedicated to the dark poet who was born nearby.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A monument to the first person to sail around the world solo, nowhere close to where he was born, set sail, or landed.

Historic seaside park featuring explorable, abandoned military structures.

Built to bless whalers before their voyages, this Massachusetts church now features a ship-shaped pulpit.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.

See where Bill Murray kidnapped a hapless Punxsutawney Phil.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.