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

This erect, phallic geological spire wasn't always named so domestically.

The only road through the heart of Glacier National Park.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A tunnel with windows, so you don't miss out on the impressive views.

An architect's childhood fantasy treehouse made real.

Yo, Adrian!

The site of Paul Revere's historic two lantern warning.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

A hot dog stand where the heads are just as hot as the dogs.

Shop for books in the New Orleans house where William Faulkner once lived.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Dr Barnes' $25 billion private collection of art and arboretum.

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

The fifth-longest natural arch in the world, and the longest outside China.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This historic hotel invented the chocolate brownie.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

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

The only Bahá'í house of worship in North America and one of only a handful worldwide.