In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

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

The site of Paul Revere's historic two lantern warning.

This elaborate towering structure was once famed for its revolutionary height.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Famously misunderstood wonder of the ancient world

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Originally the home of chewing gum mogul William Wrigely Jr, it is now the official offices of the Tournament of Roses.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

The home of a formerly enslaved man who went on to become a prospector, entrepreneur, and activist for Black rights.

A museum of natural history, Edwin Carter's original log cabin home and workshop houses taxidermy specimens.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

A surprising collection of bronze faces beneath a bridge in Loveland.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

A collection of over 15,000 zines works to preserve DIY publishing culture.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.