Huge masonic hall in Philadelphia with lavishly themed rooms.

This beloved marketplace mascot poops money and grants good luck.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

When ecosystems collide in the arid Southwest.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

With over 10,000 lights, this engineering marvel lights up the city after dark.

This outdoor gallery of sculptures along the East River was once a landfill.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

On the hills of Bay Ridge stands a house straight out of a fairy tale.

This unusual apartment building may be Brooklyn's own version of the Leaning Tower of Pisa.

A century-old magnolia tree is the only living landmark tree in New York City.

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

Considered by many to be one of the most dangerous highways in Alaska.

The boulder is a landmark, public art, and an icon.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

A cake-themed art installation tucked away in historic Chinatown.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.