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

There’s a hidden military meme engraved on the World War II Memorial.

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

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Why settle for barbecue chips when you can get actual barbecue?

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

Two small markers remember the Alamo's feline protectors.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Three hundred years of preserved Spanish colonial history in San Antonio.

A 131-year-old wunderkammer of Texas history.

A piece of baseball history is preserved in a Pittsburgh parking lot.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

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

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

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

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

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

This public park was the site of the largest civilian disaster of the Civil War.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.