A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

Dramatic river bend surrounds a natural red-rocked pedestal.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

A hand-built folk art installation covered with messages of God's love.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A trash dump made beautiful by nature's power.

America's most famous piece of self-built architecture.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

A collection of abandoned typographic signs from Berlin and beyond.

A surreal museum of extraordinary industrial objects.

Started as a kitchen garden, now the second largest botanical garden in the world.

A slice of central Asia in the middle of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A haunting collection of the vanished and disappearing natural world.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

A museum of carnival attractions where you are invited to ride the rides.

This massive library holds what was once the largest book collection in the world.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.