The abandoned summer estate of the former Greek Royal Family.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

After the comedian dissed a Connecticut town on his show, they named a sewage treatment plant after him.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

The walls and streets of the ancient city are peppered with penises.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Once the last route taken by condemned prisoners.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Everyone's favorite clay duo immortalized in bronze.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

This medieval "painted village" is famous for its geometric facades.

This large, circular tomb is the final resting place of the first emperor of Rome.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

This North Carolina store preserves a historic moment in America's movement for racial equality.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

The last remaining predreadnought battleship in the world has been a museum for nearly a century.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

A solemn reminder of the infamous World War II war crime that massacred almost all the men in a small Greek town.

The Greek War of Independence was declared at this medieval Byzantine sanctuary.

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