A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

Where Venice's gondolas go for a tune-up.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A sculpture serving as an homage to Pope John Paul II.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The celebrated eyesore created by starry-eyed sweethearts.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

There has been an astronomical clock on this spot since the 14th century.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.