Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Legends surround this jagged rock formation in the New Mexico desert.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

A small 12th-century temple surrounded by waters believed to have curative properties.

One of the biggest markets in Asia, under one of the continent's largest domes.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

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

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

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

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

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

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.

Rock-cut cave complex filled with ancient Buddhist artwork.

This tribute to the founding father of the American dictionary originally contained a spelling error.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Odd outsider art installations surround a Gold Rush-era ghost town.