To find the "unicorns of the deep" you've got to go downstairs.

This small, but long-running hobby club has built one of the largest model rail lines in the US.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

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

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Get up close and personal with these majestic fish.

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.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Race through the maze, get your name on the sign.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

A gardener's enduring labor of love is spread throughout a small Vermont town.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.