This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

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

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

"Holy Wisdom" overlooks the city that became its namesake.

Only hotel where you can legally launder money.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

A centuries-old church stands as a testament to Boston's "father of architecture."

The site of Paul Revere's historic two lantern warning.

This memorial honors those who served on Gallops Island Radio Training Station during the second World War.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.