Purdue students would lean over this iron fence to skirt campus rules against smoking and courting.

The first spinning jail built in the United States is the only one that still turns.

Walk in the footsteps of the famed astronaut at Purdue University.

An unknown number of cholera victims are buried in two nondescript graves.

A Fibonnaci spiral model of our solar system.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

A community gathering place that once housed half-ton tanks and the World's Fair.

The longest and widest floating bridge in the world.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Site of the greatest known waterfall that ever existed.

A fine, large-aperture telescope available for public use.

What's that on the side of that building? Va Va Voom, it's Bettie!

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

Tour the original street level of Port Angeles, buried underground in 1914.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A giant Troll lurks under one of Seattle's oldest bridges.

Visit a World War II era coastal battery in the center of one of Hawaii’s main tourist destinations

Hawaii’s largest cemetery rests inside an extinct volcano crater.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Right here, members of the Lewis and Clark expedition boiled ocean water to make salt.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."