The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

The grounds of former plantations where abolitionist Harriet Tubman spent her youth enslaved are now a museum to her incredible life.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

Home to the first child born to English colonists in North America, this colony mysteriously disappeared while waiting for supplies.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

This one-room cabin where the young colonel slept during the French and Indian War.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A memorial to the most decisive Native American victory of the Plains Indian War.

Browse an impressive collection of passenger and military aircraft dating back to World War II.

These five houses were built for the 1933 Chicago World’s Fair.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

Site of a tragedy on the Oregon Trail.

A haunting memorial to Africans kidnapped and lost at sea during the slave trade.

A mountain pass used by Prohibition-era bootleggers to facilitate traffic into and out of Canada from Vermont.

The largest open-air museum in southern Europe, where nature and contemporary art exist in harmony.

Decorative folk arts dot the countryside barns of Berks County. 

Giant steel and concrete dinosaurs near Route 66 invite passerbys into a mineral shop.

An ambitious developer built what was once the world's tallest fountain in a Phoenix suburb.

The site of the daring river crossing that changed the course of the American Revolution.

Three wooden middle fingers raised in protest.