The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The walls of the iconic dome are hollow and have a secret stairway.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

The site of the climactic scene from the classic horror film is now a historic landmark.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Roses and other fascinating flora fill this garden built to commemorate Britain's immortal Bard.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

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

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

There aren't too many operational funiculars around, but Pittsburgh has two!

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

One incredible room in the Santa Barbara Courthouse is covered in wall-to-wall canvas murals.

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

A bigger-than-life pun that has become a beacon of altruism.

A stellar example of Art & Crafts architecture, and a movie set to boot.

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.