This historic hotel invented the chocolate brownie.

In one Chicago park, a trio of werewolves are waiting to devour their fallen brethren.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

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

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The most accurate timepiece in the world.

At 207 feet, one of the world's longest continuous escalators.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

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

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

The privately owned cemetery that holds room for Washington's finest when they step down from life.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

Home to items never before seen by the public.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

A much-maligned monument to teetotalism.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

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

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

America's first federal monument.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.