Minnesota's oldest and deepest mine is now an underground physics laboratory.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

The watery grave of an impractical idea.

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

The first hand-illuminated, hand-written bible since the invention of the printing press.

An amazing collection of sculptures and art.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

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

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

FDR's Art Deco hospital tower was hopelessly inefficient.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

An astounding collection of medical specimens, including bits of President Lincoln.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.