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

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

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

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

Memorializing an American tragedy of massive proportions.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

Local lore claims this park is named after a young woman who jumped off a cliff.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

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

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

A museum dedicated to exhibiting remarkable outsider art.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The blinking light atop the iconic landmark has been sending secret messages for decades.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The first declared National Monument in the United States.

Home to the deepest rift anywhere on Earth.

The 15-foot-wide, 2-ton pan fries hundreds of chickens once a year.

A larger-than-life statue of America's favorite sundae marks the place it was invented.