One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

The trials and tribulations of marking Poe's grave.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

About 80% of all U.S. avocados are descendants of Rudolph Hass's glorious tree.

Megachurch turned Catholic church comprised of 10,000 glass panes.

This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

An eerie smiling woman looms above the granite tombstones.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

Man-made geyser that rises to the exact height of the Gateway Arch.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This cemetery is all that remains of a school for "wayward" girls.