One of the few working locomotive roundhouses in the United States.

Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

When beetles destroyed these trees, they found new life as fantasy sculptures.

Home to over 300 antique cars and motorcycles, including Thomas Edison's Model A.

A home built and settled by a refugee of the Salem Witch Trials.

This sculpture is dedicated to a local therapy dog who later became the official mascot of the 126th Boston Marathon.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

This pavement line and accompanying statue commemorates the starting point for the world's oldest annual marathon.

Dedicated to a local cow who escaped a slaughterhouse and became an international symbol of peace.

Constructed in 1676, this stone memorial is believed to be the oldest veteran's memorial in the United States.

Glass and concrete building designed by Albert Kahn.

The birthplace of the Ford Model T is now a museum full of antique cars.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.