One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This ancient statue of Dionysus lies unfinished and abandoned in one of Greece's oldest quarries.

One of the oldest still-working clocks in the world sits on an ancient tower.

In this medieval church, a centuries-old stuffed crocodile hangs from the ceiling.

Once the hunting reserve of a noble family, this is one of the few remnants of Pleistocene planitial forest in northern Italy that still stands.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

In Lago Superiore, the largest expanse of lotus flowers outside of Asia is hard to miss.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

The seat of the Mantua bishop holds many secrets within its walls.

Inside the small garden of two mid-century apartment buildings stands a centuries-old bell tower, separated from its original church and hidden from view.

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

Built as a defensive structure, this medieval walkway road offers a unique view of the village of Brisighella.

Since the 1960s, this small village has invited painters to decorate its walls.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

An amazing collection of wax anatomical models and terratological models.

The people of Padua pledged to construct this church if the city was spared from destruction during World War I.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

A map of Italy made entirely of trees.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

The sunlight passing through the opening of this huge cave system creates a magical effect.

During World War II, this rice mill became a Nazi concentration camp.