This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

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.

The oldest operating pharmacy in the world features 800-year-old recipes.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

100 year tradition of fist fights, marked by marble footsteps.

This one-time health resort was used by aristocrats around the world.

Hundreds of caves once used to store grains and animal feed.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This 19th century cyclorama acts like an analogue time machine to a different era.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.