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

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

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

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

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

A mecca for India's Jains.

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

This 17th-century mausoleum is topped with an acoustic marvel.

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 ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

A single tree's 2,800 aerial roots give the appearance of a complete forest.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.