This magical place built as an astronomical center starred as a James Bond villain's lair.

The largest freshwater lake in northeast India is also the only floating national park in the world.

In Mumbai, a bright blue synagogue is the largest one for the Baghdadi Jewish community in Asia.

This lavish estate recalls the opulent history of Calcutta.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

15 monolithic temples emulate an eroding sand castle.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

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

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

Siddhartha Gautama sat here and received enlightenment.

This abandoned stepwell is one of the largest, deepest, and certainly one of the creepiest in India.

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

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

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

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

A startling, centuries-old subterranean marvel hides in plain sight.

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

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

Rock-cut cave complex filled with ancient Buddhist artwork.

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.

The remains of what was, not so long ago, the world's largest city.

This otherworldly palace-mausoleum complex is the stuff eternal dreams are made of.

Centuries-old bridges grown from tangled roots.

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