One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Rock-cut cave complex filled with ancient Buddhist artwork.

A mecca for India's Jains.

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

Annual street carnival celebrating Indonesian heritage.

A gargantuan crystal kingdom.

China's most famous acrobatics act.

Cheap art and political theater in Vermont.

One car at a time please.

An isolated dive site teeming with cnidarians.

Dig for your own trilobites in this goldmine of invertebrates.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

"All Mountains - All The Time."

World's first "penitentiary," meant to be humane, drove men insane.

Curios, scientific antiques, oddities for sale.

The clock that sets them all.

Rippling sand dunes frozen in the Arizona rock.

A terrific purveyor of natural history objects and curios.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

The curious underground history of keeping Paris clean.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.