One of only five observatories in the world built to measure the Earth's wobble.

Natural rock water slides hidden in the remote forests of northern Idaho.

World's largest carved onyx figure stands as a tribute to enduring peace.

A museum within a museum, devoted to history's most questionable medical devices.

Amazing taxidermy dioramas from the 1960s in a cement building meant to look like an ice cave.

This vast kitty-themed collection illustrates the history of human-cat interaction.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

A statue in the Texas town that proudly calls itself the killer bee capital of the world.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

Centuries of biking history are nestled in the shadow of the birthplace of contemporary mountain biking.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

The only surviving prototype of Buckminster Fuller's revolutionary car.

A hands-on traveling collection of the innovative devices of yesteryear.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

Eclectic collection of rare and beautiful stones in a historic home.

Explore the History & Technology of Electronic Communication

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

In northern Ohio, the glorious past of America's trains is on full display.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

This French Canadian classic is a specialty of the oldest continually used church in Minneapolis.

Legend says these stone structures are where the doomed citizens of a vanished village sent themselves to die.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

A six-story-tall golden pyramid, surrounded by a moat.