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

This automated sculpture of two men peeing will spell out text messages with their micturition.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

A series of playful yellow penguins share a serious message about the environment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Steadily reminding Czechia of its past.

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.

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

Enormous sandstone towers loom within a Czech forest.

This fortress was designed to prevent a Nazi invasion but was never used.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Ancient mysterious ruts carved in the bedrock.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

A futuristic, brutalist masterpiece that is also strangely prison-like.

Two distorted Romanesque columns hold aloft a mine cart in honor of laborers who died during WWII.

A 11-foot former president stands on a Kosovo street that also bears his name.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

Resonant stone, that has been played since prehistoric times.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.