Read between the lines of the subway map to find the hidden abandoned Civil War fort.

Abandoned medieval hill town.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

Ruins of a 10th century church tucked away deep in a botanical garden.

World-famous, Pink's still manages to keep its prized cult fetish status.

Banksy gives themself artistic license with this piece of London street art.

The loneliest island in New York.

America's only nuclear missile silo open to the public.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Japanese island famous for poison gas and fluffy bunnies.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Travelers exchange letters with woodland creatures at this mini post office.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

Australian Lake set aglow by Noctiluca Scintillans.

A magically clear, blue river that seems to spring from nowhere.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

See massive fossils that are over 200 million years old in northeastern Arizona.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.