Statue commemorating the use of ether in anesthesia.

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

No one messes with the Massachusetts sacred cod, not this time...

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

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

This moving cemetery sphere is a slowly rolling stone.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

A gas station has taken the place of the home of the 19th American President.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

Perhaps the most scandalous statue of America's first president.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

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

It was once the base for a series of domestic terror attacks.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

The only surviving prototype for Buckminster Fuller's house of the future.

One man's ambition created this psychedelic log home.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.