A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Elevated freight railway turned wildly successful urban park.

A walk through the historic city center, under the streets of Seattle.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

A 140-year-old castle with underground caves hidden in San Francisco.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Dramatic river bend surrounds a natural red-rocked pedestal.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

An enormous, inside-out glass globe built in 1935.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

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