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

Fifteen Jodhpur queens left their handprints before going to their fiery death.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

An ancient iron pillar in Delhi that seems to be rustproof.

The oldest still-inhabited hill fort in India looks like a magnificent golden sandcastle.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

Modest by day, illuminated majestically at sunset.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

A blooming house of worship for the masses.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

This experimental utopian "city of the future" in rural India may hold a dark secret.

An extraordinary "City of Caves" carved from solid stone.

Rock-cut cave complex filled with ancient Buddhist artwork.

The world's second-largest sundial, made entirely out of stone.

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

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

A small house sits between two huge rocks, with its back to the sea.

Rows of multicolored bathing huts paint the sand dunes with pops of color.