Once the largest windmill outside of Holland, with enormous 114 foot sails.

A second generation sun-powered marvel lights up the night.

Golden Gate Park's historic collection of plants.

A 300-ship graveyard, with a few still visible at low tide.

A modest reminder of treacherous waters at the Golden Gate.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

The loneliest plant in the world resides at the Durban Botanic Gardens...mostly.

Catacombs turned marketplace.

Hear the quietest sound from across the dome.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

The clever workshop that has been designing some of the most unusual coffins imaginable.

Macabre astrological automaton clock dating to the late 1400s.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

France's most famous cemetery, with some of its most curious tombs.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

An artist's cute bronze subway sculptures belie his violent artistic past.

A Natural History and Science Emporium.