A temple devoted to inner esoteric mysteries located in a California commercial strip.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

This graceful little figure is a one-of-a-kind version of the cherished character.

Opulent downtown movie theater now houses cars as an indoor parking garage.

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A German apartment building hosting as many trees as human occupants.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

An intricate and amazing house built by architect Karl Junker.

When the rain falls, this drain system turns into a musical instrument.

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

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

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

An homage to the humble watering can.

This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.

A collection of items from a way of life that no longer exists.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.