Scattered throughout London are ancient remnants of the city's former bounding wall.

A fitting attraction for the corn capital of the world.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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

See massive fossils that are over 200 million years old in northeastern Arizona.

A beautiful geyser under environmental threat.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

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

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.

A museum dedicated to the history and exploration of both popular music and science fiction.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

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.

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

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

An antiquated German apothecary on Chicago's North Side.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

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