A county library in rural Ohio houses one of the finest mineral collections in the world.

Largest magic museum in the United States with more than half a million pieces of memorabilia.

The unusual medical inventions of the man who gave the world Corn Flakes.

More than 3,200 cookie jars line the walls and shelves of this little shop and over 1,000 salt and pepper shakers

The very isolated Charity Island Lighthouse has been watching over Saginaw Bay since 1857.

This unusual three-way wooden foot bridge spans two rivers at once.

The writing studio of an American adventure author, built in the style of a medieval castle.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

This experiment in the lifespan of seeds will take a century before it is complete.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

The park is home to the United States's only still-operating Dutch windmill.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

The fantastic architectural models of a French traveler.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

This old medieval prison tower has been a site of astronomical research for more than 250 years.

Renaissance villa and gardens complete with a tormented colossus.

Caves famous for the dragon-slaying saint who lived there.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.