Collection of fossils, plants, and ancient animals encased in amber.

This colorful gate stands as an entrance to the walled city of Old San Juan.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

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

A blooming house of worship for the masses.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

The octagonal tower at this important Buddhist site was added many years after the temple's initial construction.

A bulky, ancient stupa marks the site of Siddhartha Gautama's seminal Buddhist teaching.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

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

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

The evocative ruins of a 1,000-year-old hill fort lie within a popular tiger reserve.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

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

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

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

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

There are millions of temples in India, but only one prominent temple dedicated to the Hindu creator god.

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

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

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