Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

Italian cave with exceptional acoustics and an unsavory history.

Thousands of rock-cut tombs fill the cliffs of this Sicilian nature preserve.

The world's most active stratovolcano is almost always erupting.

According to legend, after Hades pulled Persephone into the underworld, one of her attendant nymphs cried so much that her tears formed this spring.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

The eyes and ears of this tower keep watch over Malta’s Grand Harbor.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

This small village claims to be independent from Italy because it was left out when the nation was unified.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This spooky statue sits outside a famous Prague theater.

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

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

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

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

A Baroque mansion with ties to legendary magicians and alchemists.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

Monument to a suicide protesting the Soviet invasion.