A concrete block embedded with thousands of pulled teeth was created by a local dentist to memorialize his dog.

A rural hall of justice holds the world's only comic book and superhero museum.

One of the few authentic Japanese gardens in the state of Indiana and perhaps the most peaceful place in the city of Mishawaka.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

A park where people have been going to feed friendly pigeons since the 18th century

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This tiny home was originally a narrow alleyway.

A former pyramid-shaped library with colorful murals lies just across the bay from Old San Juan.

The ruins of the first Spanish settlement in Puerto Rico.

At this studio, musicians, engineers, and quite possibly a music-loving ghost carry on Puerto Rico's musical traditions.

The secret skeleton of a murdered nun was discovered in this church basement, but the scandal doesn't end there.

This shallow cave got its name from copious amount of human bones found inside.

A museum dedicated to the dead and the tools used to usher them into the afterlife.

A tragic mystery left this boy nameless for 65 years.

War prevented this Polish composer's body from being returned to his home country for 51 years. Though his ashes eventually made it home, his heart stayed behind.

Hidden behind an empty field resides this early 19th-century cemetery.

These hooded graves are the only of their kind in the United States.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.