A wall of chewing gum moonlights as collective art.

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

Built for an exposition in 1915, these horticultural displays have stood the test of time.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

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

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

Yo, Adrian!

A layered tribute to the work of mosaicist Isaiah Zagar.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

San Francisco's newly reopened hands-on science museum.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The celebrated eyesore created by starry-eyed sweethearts.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A mysterious spirit totem at the edge of Navajo lands.

Bits and pieces from the ill-fated Donner Party's winter cabins.

This museum boasts the ninth-largest collection of insects in North America.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.