This archaeological site was once a grand city of the Indus Valley Civilization with a sophisticated system for conserving water.

In an arid region, this beautiful lake in the Aravalli hills is an unexpected delight.

The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

Delhi's only female ruler is buried in this neglected, forgotten tomb.

Said to be the largest synagogue built in India.

An alchemist's "magic door" stands in the middle of a Roman park.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

The oldest volcanology research center in the world.

A sulfuric hellscape in southern Italy.

This museum located in Fondi is also said to be the most haunted building in town.

Hidden in a high mountain cave, this hermitage dates back to the ninth century.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

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

This stretch of the ancient Roman road is preserved in a valley that witnessed many battles and legendary highwaymen.

The ruins of this Roman temple dominate the small city in southern Lazio.

A Roman temple perched over an Italian town, forgotten several times over.

The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

A freedman baker’s lavish tomb has a relief showing various stages of Roman bread making.

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.

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