The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The "lovely red Vega" of the legendary record-settling pilot.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Home to items never before seen by the public.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The only castle in North America to ever house European sovereigns.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A historic freight system that found the true gold rush is in tourism.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

The king of U.S. high points towers over every other peak on the continent.

This quirky piece of naval artillery has been deafening Canadians for over a century.

The colorful, smiling concrete silos of Vancouver.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

A geological mystery on Camelback Mountain.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Dramatic river bend surrounds a natural red-rocked pedestal.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.