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

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

A dead saint, a deadly poison, and a mysterious holy ooze.

Where members of the Crossbow Corps of San Marino demonstrate their skills.

The San Marino-Rimini railroad was short-lived but this tunnel once provided shelter for hundreds of refugees during World War II.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

A tribute to the first human in space.

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

This ex-prison dates back to the Middle Ages.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

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

A collection of old neon signs from all over Poland line a secluded courtyard.

A striking public sculpture representing the period of martial law in Communist Poland.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Legends surround an ancient tree trunk riddled with nails for good luck.

Baroque celebration of the end of the Great Plague of Vienna.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.