A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Quite simply the largest tree in the world (by volume).

Four hundred granite steps were built into this massive rock by the National Park Service.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

An artsy hidden staircase leads to breathtaking views of San Francisco.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

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

Stroll through a wonderland of stupendous moss-covered trees.

The longest and widest floating bridge in the world.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

Granting the right of way to ships over surface traffic since 1917.

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

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

This music school doubles as a store for unique, hand-crafted, and hard-to-find instruments.

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.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

Named for the 39 tribes that live in Oklahoma, this restaurant's menu deliciously highlights local flavors.

Behind the Cowboy Hall of Fame is a burial ground for good horses and a famed rodeo bull.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.