A kaleidoscopic warehouse-maze of handmade neon signs.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

These fantastically named natural pools look like something out of a Scottish myth.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

Crop circles inspired this whimsical garden in Germany.

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

A kindergarten shaped like a cat with a tail that's a slide.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

A striking 12th-century-style castle built on the edge of a cliff.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

This concrete residential area doubles as an open-air gallery.

A towering monument to war, located on a beautifully peaceful hill.

This curious sculpture represents the perseverance needed to take to the skies.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A surreal museum of extraordinary industrial objects.

The first museum dedicated to exploring humanity's cultural relationship with the celestial world.

The pyramid and dome deep inside the Dzūkija forest are believed to channel divine energy.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

You would never guess that before World War II this lonely field was a bustling German city.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

A small monument in Lithuania marks the geographic center of Europe—or at least one of the claimants.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.