This spooky statue sits outside a famous Prague theater.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

This quaint museum tells about more than just the birth of Jesus: "betlémy" are an important piece of Czech history.

This spherical sculpture has also been dubbed "the steel orange" due to its likeness to a massive, sliced piece of citrus.

A massive, abstract lookout tower providing a panoramic view of Prague.

This artificial cave looks like something out of a fairytale.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

The first museum in the world devoted to sexual gadgetry.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

This doorless 20th-century elevator doesn't stop or slow down.

The hidden lair of an alchemist rediscovered in a 2002 flood.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A crucified and bearded female saint.

Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A patch of contaminated land reclaimed as a scrappy sculptural oasis.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

Cryptid lake monster honored with its own monument.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

The Vermont square that inspired Shirley Jackson's "The Lottery."

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.