Where beautiful signs live on forever.

This magnificent Cincinnati graveyard is also a popular public park.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside, ancient treasures. Outside, modern contradictions.

Now in disrepair, this 19th century station was a stop on of the famed B&O Railroad.

A castle built by an eccentric medieval enthusiast in rural Ohio.

At this farm in upstate New York, the former president plotted his reelection campaign.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

Also known as the Cathedral of the Plains, this church holds the distinction of being one of the "8 Wonders of Kansas."

Believed to be the oldest active college baseball field in America.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A bizarre house filled with an astounding array of collections.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

An art deco ice cream shop covered in vintage train station tiles.

One of the last few period-correct, hand-operated canal locks in the country.

Rare recess caves fill this unbelievably beautiful Ohio park.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

Inside houses a vast collection of military aircraft and missiles spanning the ages.