This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.

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

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

This abandoned fort is said to be the most haunted place in India, so much so that entry is prohibited after sunset.

This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

A blooming house of worship for the masses.

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

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

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

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.

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

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

A mecca for India's Jains.

This Bangkok high-rise looks like a rudimentary LEGO elephant.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

A tall karst islet popularized by 007.

A limestone wonderland of water and subterranean secrets.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

A modern temple with an ancient philosophy.

Bangkok's men with dangerous jobs come here in search of protective talismans.

Stunning wetlands ablaze with pink lotus flowers.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.