An unusual cave filled with rare alien-looking aragonite formations.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Too much gossip or just missing curfew could land you in here for a couple of days.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

The world's newest astronomical clock is also its most accurate.

A perfectly preserved hill village where the buildings are painted like white lace.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

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

Disturbing works of outsider art, carved from whole logs.

Ruins of a late 1950s Polish ski jump ramp in the middle of the city.

A stone in Wolin, Poland, marks the possible location of a legendary Viking fortress.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

A marker honors the brief peace found by a tormented artist in the fictional land of Kcymaerxthaere.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

Relive a Polish uprising via an enormous, century-old cyclorama.

An impressive monument to Poland's independence.

This unique railroad museum secretly contains the history of Poland rebuilding itself from the inside-out.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

The shattered remains of the world's once tallest structure.

The biggest exposition of dental equipement in Europe. And a Mummy.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.