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

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

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

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

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Single runway interrupted by a busy road that cuts across its middle.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Famously misunderstood wonder of the ancient world

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

The palatial McDonald's that inspired Wesley Willis.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

An alley covered with 20 years of bubble gum.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A "miracle" that seems to produce more holy fistfights than holy revelations.

The home of the Dead Sea Scrolls is an abstract modernist dream.

Become a prohibition rebel.

Tucked in the back of this amazing antique store is an important piece of medical history.

A semi-scholarly approach to sex.

New York City's smallest piece of private property.