Hear the quietest sound from across the dome.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A stone face watches over the river.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This impressive Boston holy house is the American mecca for Christian scientists.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

The Boston square dedicated to the dark poet who was born nearby.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

A memorial for the mustachioed record-setting runner.

Three hundred years of preserved Spanish colonial history in San Antonio.

This replica of the Greek structure is in the heart of Nashville.

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

The most decorated dog of World War I is preserved in the Smithsonian.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Home to items never before seen by the public.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.