Quite simply the largest tree in the world (by volume).

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The largest earthwork effigy in the world.

An homage to everyone's favorite prehistoric cartoon family.

The first declared National Monument in the United States.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The fairy tale castle of the "fairy-tale king."

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

One part local history, 99 parts gruesome haunted house.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

An incarceration museum on the spot of possibly the oldest prison in England.

400-year-old garden, restored to beauty.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

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

One Confederate statue that accurately reflects the ugliness of its subject.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

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

One person's lost luggage is another person's treasure.