The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

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

These whimsical works of art tell the story of the city's past and present.

Ice cream stand, snack bar, and time capsule of milk conveyance.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Most-visited and most-photographed slot canyon in the American Southwest.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The remnants of a creative early method of wildfire prevention.

A Kansas nature preserve protecting the plants and animals that once stretched across central North America.

Tribute to the famous Notre Dame football coach who died in a plane crash.

Curious rock formations in a tiny Kansas state park.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

This rural roadside cross marks the farthest point of Coronado's expedition, and the place where the Catholic faith first came to America.

This 41,000-acre wetland complex is the largest marsh in the interior of the United States.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

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

These otherworldly limestone formations jut out from the Kansas prairie.