The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A symbol of Texas pride.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

The alley connecting two of country music’s most historic venues has a rich history of its own.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This replica of the Greek structure is in the heart of Nashville.

In 1909, the steepest and most difficult piece of track on the Canadian Pacific Railway was replaced with a series of spiralling tunnels cut into the mountains.

In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

The helicopter that "Tricky Dick" absconded from the White House in on his last day in office.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

Sports history, made in the Arroyo Seco.

Two groundbreaking brothers from Pasadena.

One of Hollywood’s favorite government buildings.

Oldest building in California still in use.

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