A little sculpture with a large wardrobe.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

2300-year-old Roman road connecting the empire.

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

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

A mouldering Colombian bull ring stands as a reminder of the country's complicated relationship with a brutal sport.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

An 18th-century battery complete with original kitchen and garrison.

The colonial city's social history is reflected in its fanciful door knockers.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

It would take you approximately an hour and a half to walk to the end of Mexico's largest pier.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

Iconic red and white plaques show the creative names invented to navigate the city streets.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.

This ancient theater was once the home of fierce gladiatorial battles.

Perhaps the most spectacular grotto along the Algarve coastline.

A unique seaside cave where Aleister Crowley faked his own death.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.