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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

A walk through the historic city center, under the streets of Seattle.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Send a postcard while vacationing with Satan.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Stairs often replace streets on the steep slopes of this old mining town.

Limestone caves with spectacular showcase chambers.

A place to eat for on-the-run agents and espionage enthusiasts.

This striking art museum holds an amazing series of curiosity cabinets.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

World's largest Christmas store.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

What was once the largest NFL stadium.