A wall of chewing gum moonlights as collective art.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A community gathering place that once housed half-ton tanks and the World's Fair.

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

An ancient octagonal weather station named for the eight Greek gods of wind.

Old submarine parts have been converted into faux whale fins.

This working class sculpture pounds his hammer all the livelong day.

The cardinal directions, set in stone.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Stroll through a wonderland of stupendous moss-covered trees.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.