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.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Less a museum than a bizarre fantasy world created by artists and engineers.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The world's longest known cave system.

Home to items never before seen by the public.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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