North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

Go inside to really appreciate this 500-year-old technological masterpiece.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The first declared National Monument in the United States.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

The Habsburgs' royal collections of art and wonders.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.