Study the Alien etchings in this fountain while you refill your water bottle.

Single runway interrupted by a busy road that cuts across its middle.

Every part of this unusual home is built into the sandstone rock.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

The most alien-looking place on Earth.

Europe's first floating restaurant is home to a hilarious legend.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Be(w)ar(e) the moat around this historic Czech castle.

Heralded as one of the prettiest castles in all of Czechia.

In the town of Třeboň, carp is king.

Naturally formed rock city in Poland.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

This ruined castle perched atop a rocky peak is a great place for a hike.

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.

The 14th-century ruins are said to contain healing powers.

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

A spiral staircase twists to the top of this unusual Czech lookout tower.

An enormous and lavish Gothic church in Czechia.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

This centuries-old wooden wonder was built in less than a year and is one of Europe's largest timber-framed churches.

A statue honors the children who fought Nazis in Poland.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The silly symbol for an underground protest group is now scattered around the city.