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

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

Deep in the Thar desert, a temple crawling with thousands of holy rats.

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.

A complex of six forts embedded in the Rajasthan hills.

Sacred Indian temple that’s all monkey business.

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

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

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.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

See no evil, hear no evil, speak no evil.

Is this cat asleep or just pretending?

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

This enormous "shamoji" means more to the people of Miyajima than just a way getting rice onto a plate.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

The world's longest tunnel with an undersea section.

A moss-covered statue of a Japanese Buddhist deity stands at a quiet temple in downtown Osaka.

This ancient shrine has been rebuilt every 20 years since the eighth century.

The giant figure on the back of this turtle-shaped temple actually hides a memorial pendulum.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

Peace Park and the Atomic Bomb Dome.