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

During World War II the Thorp building was guarded by the OSS, FBI, and US Navy because of the top-secret bombsight being produced there.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

A hidden oasis in the heart of Minneapolis is also an Important Bird Area.

Funhouse of found art and participatory sculpture.

When flour explodes, it's not a pretty sight.

Once the home of a local newspaper, this small museum preserves the history of Beaver Island, from its Indigenous inhabitants to the arrival of a self-proclaimed king.

On a remote island in the northern reaches of Lake Michigan, a museum of collectibles collides with a vintage toy store.

Strange physical sensations and optical contradictions keep visitors coming back for more.

These medicine cabinet staples are part of the museum's collection of everyday objects.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

The abandoned coal loading dock is a canvas for unsanctioned art.

This elaborate towering structure was once famed for its revolutionary height.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

The oldest surviving botanic garden in the United States.

Dr Barnes' $25 billion private collection of art and arboretum.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Where America's first doomsday cult awaited the end of the world.