Display that gathers the basic elements of the universe in one convenient location.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

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

This Mediterranean castle was built for a millionaire and his giant dog.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

A warehouse for all of your architectural details.

20,000 pieces in a Frank Gehry-designed building.

A series of 33 stone markers maps an ancient 55-mile transportation route.

This lab's maddening silence is good for business but bad for sanity.

An amazing collection of sculptures and art.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

A collection of pianos and more guaranteed to delight anyone interested in music history.

These curious caverns have been home to mushrooms, gangsters, and disco.

One extremely determined man's homemade universe.

An oddly poignant roadside attraction celebrating American folklore.

A museum devoted to the victims and the survivors of the most catastrophic fire in American history.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

Almost half-way between the Equator and North Pole.

The highest point in Wisconsin is capped by two towers that are not as mythic as Tolkien's but provide much better views.

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

Museum with an extensive collection of Cray supercomputers and related artifacts.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

A sprawling museum filled with larger-than-life works of art.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.