This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

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

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

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

An enormous, inside-out glass globe built in 1935.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A men’s restroom became a sandwich shop.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

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

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

A walk through the historic city center, under the streets of Seattle.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Go surfing on this urban wave, "hacked" by local surfers.

A stairway to heaven, or to nowhere at all.