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

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

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A Nevada mining boomtown that ran out of silver and luck.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

Potential high level nuclear waste storage site for the next 10,000 years and beyond.

Singing sand that stands as the final remains of an ancient lake.

The longest living non-clonal organisms on Earth.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Odd outsider art installations surround a Gold Rush-era ghost town.

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

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

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

A small oasis not far from downtown Moab.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

The fifth-longest natural arch in the world, and the longest outside China.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

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

Despite its name, this route in southern Utah offers a heavenly day trip.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Gutted airplanes slowly decay in a Florida field.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.