If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

On the grounds of a hospital in Ghana, a legendary sword said to have been plunged into the earth hundreds of years ago.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

A 20-meter (65-foot) robot towers over Tokyo Bay.

The highest bridge in Myanmar was once the tallest railway bridge in the world.

A vast, otherworldly collection of Buddhist stupas.

The dead gigantic radio tower of Liberia.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

The cuisine at this Sheepshead Bay spot tells the story of a displaced Muslim Chinese community.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A prohibition era watering hole for the police.

The greatest real estate coup of all time.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

A hidden "place of interment for gentlemen."

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Historical figures from New York City's Catholic community reside in Midtown.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

Plot your trip through the city on the sidewalk.

The French deconstructionist had a weakness for baked goods.

Play heads or tails with thousands of different coins.

Huge masonic hall in Philadelphia with lavishly themed rooms.