An eerie reminder to the horrors of World War II.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

This statue is the only female representation of Rome's "talking statues."

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This Underground station has been a popular filming location for decades, even before it closed.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

You must take the A train... to the last active cemetery in Manhattan.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The world's first combination ski slope and power plant.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This stretch of highway is said to be haunted by ghosts of settlers whose graves were paved over.

The highway's southernmost spot is a beloved local attraction.

The pockmarks across the building's facade are remnants of the Blitz.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.