These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

Under the desolate and windswept northern coast of Barbados stands a small oasis filled with sea anemones.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

A gallery of underwater art that can be visited by man and fish alike.

The site of a devastating modern-day mud volcano eruption that buried parts of a village.

This giant Cold War satellite dish has become a symbol of Trinidad's need for sovereignty.

Nature and art meet in this curvy creation

This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Where America's first doomsday cult awaited the end of the world.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

The California capital city once stood 10 feet lower than it does today.

This Chinese-style quartz sundial was saved in its final hour.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.