Visible below the waves are memorials to the city's Gold Rush dead.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Former villa and estate of James Deering developed to preserve native tropical forests.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

Mexico's astounding mummy museum with "the world's smallest mummy."

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

A mouldering Colombian bull ring stands as a reminder of the country's complicated relationship with a brutal sport.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

A huge, bustling local market in Panama City.

A pocket of jungle amidst urban expansion in Panama.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

A clear blue swimming hole with hidden caves, still unexplored.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Guatemalan womanizer, venerated during Holy Week.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

This restored colonial house was once home to the botanist responsible for bringing avocados to the U.S.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.