The former home of Dutch anthropologist Bert Flint now houses a collection of Berber art and artifacts.

This 7,000-year-old megalithic wonder covered by a Franco-era reservoir emerges in times of drought.

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

The undercroft is a spectacular example of medieval Cistercian architecture.

This museum is dedicated to the little known ancient Roman history of Vienna.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The underground mall's skylights look like they could be part of a spaceship.

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

Built in the 1300s, this magnificent building that hosted England's kings and queens transports you to the Middle Ages.

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

Take a walk in a recreation of ancient Rome.

One of the largest mechanical models of the solar system in the world.

This building has survived for more than a century and remains virtually untouched.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts