The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Washington's iconic carousel has a nice piece of Civil Rights history.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

Decades before the scandal, this staircase on the river was a literal "water gate."

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

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

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

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

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

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

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

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

Look closely and you’ll notice that the color changes a third of the way up the tower.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

America's first federal monument.

A former major munitions plant that has been converted into a sprawling art space.