Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

An collection of Chinese propaganda posters from 1949 to 1979.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

These layered sandstone mountains in China look like they are made of pressed crayons.

Intensely colorful calcite pools in Southern China.

This abandoned fishing settlement may well be the greenest village in the world.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A part of the world's largest marsh seems to be growing bright red Martian grass.

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

Known as the Hintz House, this medieval pharmacy has been an apothecary's haven for nearly 450 years.

A muddy alien landscape that is home to rare species of exotic plants.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

No one knows who built this strange cave of worship or exactly why.

A giant portrait of an ancient king looms over the river.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

Moss and stone turn this waterfall into an otherworldly liquid veil.

A naturally beautiful, seemingly bottomless deep blue spring.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.