Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

This quiet park's strange sedimentary spires were named after Kodak's color film.

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Frank Lloyd Wright died a year before construction on his largest public project even began.

A 300-ship graveyard, with a few still visible at low tide.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

Handmade treasures from around the world.

Nose around a unique collection of more than 300 natural aromas used to craft fragrances.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

New York City's smallest piece of private property.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

The first piece of public art dedicated to LGBT rights.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.