Alexander Hamilton’s creation caused quite a bit of controversy.

Yo, Adrian!

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

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.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

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

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

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.

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

A community gathering place that once housed half-ton tanks and the World's Fair.

The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

Granting the right of way to ships over surface traffic since 1917.

This working class sculpture pounds his hammer all the livelong day.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

What's that on the side of that building? Va Va Voom, it's Bettie!

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.