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

The celebrated eyesore created by starry-eyed sweethearts.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

A beautiful bamboo trail tucked in this famous Japanese Shrine.

This 700-year-old street food market features baby octopus and soy donuts.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

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

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

A little slice of Japan and its aesthetics in London's Holland Park.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

This lavish room at NYC's French Embassy is a rare relic from the end of the Gilded Age.

Discover the taste of mold.