A replica of where the Last Supper was held.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

A small Richmond island dotted with the remnants of hundreds of years of history.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

This ceremonial mound is one of the first officially recognized Native American historical sites in North Carolina.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

A picture-perfect town, perfect for blowing up.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

The contents of this safe survived a 37-kiloton nuclear bomb.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This museum explores the grim reality of life in the earliest British colonies in America.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

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

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

This historic mansion was built as a symbol of love between a husband and wife.

This little museum in the town where zombies were born celebrates the living dead.