The reason for the strange contortions in the trunks of these "drunken" pine trees in Russia is still a mystery.

A small part of Russia that does not touch any other part of Russia.

Museum dedicated to "the man who moved the Earth."

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

A cluster of headless, armless sculptures looms within a popular Polish park.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This abandoned but well-preserved Prussian fortress sits abandoned in a Polish forest near the German border.

The center of this Polish border town was so thoroughly wiped out in World War II that only the foundations remain.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

This snug medieval lane is one of the narrowest streets in the world.

Retirement home for giant obsolete machines.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

These ramparts, once lined with towers, were constructed in defense of Beaune.

During the 17th-century, orphaned infants were placed in this barrel to be cared for by the hospital.

This medieval village clings to a cliff in southwestern France.

This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

A former ironworks that was the first UNESCO industrial site.

This historic stone bridge has an entire neighborhood clinging to its sides.

Beloved children's TV characters freckle the German city's streets.

A six-story, asymmetrical tower filled to the brim with scientific experiments.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."