The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Erotic art covers the walls of the largest ancient pleasure palace.

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

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This whimsical fountain pays tribute to Toronto's four-legged friends.

Known as "Toronto's Flatiron."

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

The world's smallest drawbridge.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

An encyclopedic collection of mammal penises.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

Visit the monolithic tomb of America's most famous general.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Peek through the gates at this oasis from the city, full of Old English charm.