A natural arch offers panoramic views of Yangshuo's karst hills.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

An ocean in the making, in the Ethiopian desert.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A decommissioned military complex that's now a modern industrial park.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

Ride the subways of yesteryear.

Sniff the Titan Arum's rotting flesh.

A "miracle" that seems to produce more holy fistfights than holy revelations.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

Charnel house at the foot of Mount Sinai.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.