An 18th-century Spanish watchtower made entirely of seashell and concrete.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

Town of spiritualists and mediums in Florida.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

This psychedelic tourist trap is a leisurely descent into madness.

China's most famous acrobatics act.

An collection of Chinese propaganda posters from 1949 to 1979.

This former textile district now is now a thriving center for contemporary Chinese art.

The once highest point in China blends symbolic design with a kick of adrenaline.

An out-of-place slice of France, smack in the middle of Shanghai.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This probably wasn't what Mao had in mind.

A harrowing trail up a mile-high mountain.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

This Tang Dynasty behemoth is the biggest Buddha in the world.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.