Four abandoned towers hidden above the Douglas fir forest in Washington.

Seattle’s Whimsical Mural Master.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

A public art jibe at one of the United States’ oldest and longest-serving senators.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The plants form a living library and laboratory for researchers and students at Michigan State University.

One of the oldest continuously-operated gay bars in the United States is allegedly haunted by Truman Capote and Tennessee Williams.

This Maine bridge may be the last wire-supported bridge of its type in the world.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Stay in a room with a view... of the bottom of the ocean.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

A stone memorial erected for New Hampshire's only convicted witch.

A statue honoring 44 continuous years of greeting passing ships.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.