Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

European castle ruins in an American state park are actually the product of death and grief.

The only arched bridge made of stone on the entire Mississippi River.

When flour explodes, it's not a pretty sight.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Astounding collection of coin-operated games and automata.

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

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

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.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over 50 whirling pools left behind from the glacial age.

Also known as the Cathedral of the Plains, this church holds the distinction of being one of the "8 Wonders of Kansas."

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Even in death, he's still your huckleberry.

The carved remains of a 200-year-old oak tree memorialize the namesake of the iconic "Wizard of Oz" character.

The face of a woman pushes its way through the earth.

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

The drama of nature in full effect in this Nevada State Park.