These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This stone commemorates the island's launch into international aviation.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This public amphitheater was once a key part of Monaco’s defense strategy.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

The largest hewn stone in history.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

The remains of three different ancient civilizations have been found at this rich archaeological site.

An ancient capital city that dates back 3,000 years and harbors many surprises.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Unconventional site where the tracks of Zurich tramcars intersect.

The glowing blue Nymphaeum of Emperor Tiberius.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

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

These hut foundations are believed to be the residence of Romulus, founder of Rome.