This cave holds a surprisingly colorful variety of geological oddities.

Robots, lasers, and whoopee cushions, oh my!

Perhaps the most scandalous statue of America's first president.

The oldest continuously operating fish market in the United States.

The national park was once a plantation estate.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

This historic hub for labor unions has survived the city's changing landscape.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

Artistic Oasis in Industrial Ballard.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

A wall of chewing gum moonlights as collective art.

A brewery warehouse which doubles as a circus bigtop.

This Seattle museum displays the history of the telephone through an impressive collection of telecom equipment.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

This former coal gasification plant found a curious second life as a popular public park.