For modern archaeologists, the ancient world continues to hold many secrets. Civilizations disappear -- thousands of years later, researchers are left to pick through the ivy-covered ruins of their cities.
The Museum of Modern Art (aka MoMA) earned its status by helping people understand the visual art of their time. It was also the first museum to focus solely on modern art from the day it opened in 1929.
The Musée du Louvre houses some of the world's most beloved and significant artworks. However, it didn't start out that way. Would you believe that the place that holds the "Mona Lisa" used to be a fortress?
The Smithsonian Institution, America's attic, is home to some 137 million objects -- ruby slippers, presidential hair, shrunken heads, animal pelts and even dinosaur poop. What are 10 of the strangest items in the museum's collection?
What do the Spirit of St. Louis, Dorothy's slippers and Mei Xiang the panda have in common? They're all part of the Smithsonian Institution's remarkable collection. But what's the mystery behind the founding of the "Nation's Attic"?
There's something about these interactive pedestrian puzzles that really captures people's interest. It could be the sense of accomplishment when you reach the end, or it may just be a fun activity to do with family and friends.
It kept the Huns out for centuries, but today it draws 10 million visitors annually. The Great Wall winds across deserts, mountains and grasslands in even the most remote reaches of China. So why has it fallen into disrepair?