A complex of six forts embedded in the Rajasthan hills.

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

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.

An architectural marvel that dates back to the zenith of Indian architecture.

A deeply beautiful 15th-century stepwell with a tragic story.

This restaurant is proud to be built atop a burial ground.

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

This 16th-century mosque is the hallmark of the African architectural legacy in India.

Tucked in Mumbai’s wealthiest neighborhood is one of the city’s oldest and most sacred sites: a temple complex believed to house the waters of the Ganges.

Megalithic monuments resembling magic mushrooms.

Half-size replica of the Taj Mahal.

This rare basalt crater lake is used to study the Moon and Mars.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.

A 66-million-year-old rock formation stands tall over Mumbai, offering stellar city views.

If they push on just the right spot, even the weakest person can move this titanic boulder.

A self-built mosaic house and sculpture park.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

Beautiful carved tunnels.

A huge cathedral single-handedly constructed by one eccentric monk.

The vibrant buildings in the “capital of the comic strip” celebrate the art form that made it famous.

A tiny, forgotten park of surrealist sculptures in Angouleme.

The sunken structure looks like the victim of a catastrophic flood.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.