A former Roman town that was once the home of Scipio Africanus.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

A submerged archeological park still holds the wonders of a Roman Sodom.

A tree that defies gravity grows in an ancient ruin.

Virgil's many-mouthed gateway to the underworld.

This magical-looking island is notorious for the misfortunes suffered by its owners.

Suffocating dogs was a common spectacle in the fumes of this noxious cave.

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

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

An unexpected sinkhole in a desert flat within Gold Butte National Monument.

The oldest private residence in New York City.

One man's remarkable private collection of art from around the world.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

This little-known national museum houses over 40,000 works of art from across the world.

This tile-work piece featuring a chicken riding in carriage is both a remarkable artistic creation and a social commentary of politics and culture in 17th-century Portugal.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This charming candle shop has been in business since 1789.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The world's oldest bookshop still in operation.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

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

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

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.