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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A huge musical instrument played by the ocean.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A fitting attraction for the corn capital of the world.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The only road through the heart of Glacier National Park.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

A popular rock that acted as a waymarker for American pioneers.

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

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

In northern Ohio, the glorious past of America's trains is on full display.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.