This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Museum dedicated to awful artwork.

The world's largest piece of copyrighted artwork.

In Gloucester, Massachussets, fishermen celebrate a successful year at sea by charging a lubed pole to capture an Italian flag.

Civil War Fort on an island in the Boston Harbor.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A man-made island in scenic San Francisco Bay.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Tiki luxury on Nob Hill.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

A wall of chewing gum moonlights as collective art.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.