Ancient ruins hidden underneath a modern luxury hotel.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

A hospital where antique dolls are given new life.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

A large replica of a monumental Roman inscription is located on the side of this museum.

This large, circular tomb is the final resting place of the first emperor of Rome.

Architectural monsters are devouring this palace's every door and window.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The site of a tragic massacre that spawned a multimedia franchise.

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

In 1911 this intersection was called "the heaviest corner in the South," an outlandish claim that only grew wilder over the years.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The real-life site of Ichabod Crane's infamous gourd attack.

The first woman to become a member of the parliament of Iceland.

A monument dedicated to the civil uprisings that took place during the Pots and Pans Revolution.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A replica of the decorated wooden pillars Viking sailors threw overboard when finding new places to establish a settlement.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This fairytale-like structure is the last turf church ever constructed in Iceland.