Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

The charred, dead skeleton of an oak tree is said to have consoled a dying 16th-century Italian poet.

This statue is the only female representation of Rome's "talking statues."

A massive marble foot is tucked away in a small alley near the Pantheon.

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

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This is the oldest Roman-made bridge in the city still existing in its original state.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

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

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

A high-octane shrine to the greatest Texans who ever lived.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

One of the oldest standing structures in Montgomery County, Maryland.