Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

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

Mysterious 500-year-old tapestries depict a unicorn hunt.

Sniff the Titan Arum's rotting flesh.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

This museum houses an imposing skeleton army comprised of creatures great and small.

A haunting collection of the vanished and disappearing natural world.

The longest living non-clonal organisms on Earth.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.