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Preview thumbnail for video'Why This Giant Puerto Rican Fort Kept Growing
Why This Giant Puerto Rican Fort Kept Growing (2:05)
Preview thumbnail for video'Smithsonian Ingenuity Awards 2013: Adam Steltzner of the Mars Rover Team
Smithsonian Ingenuity Awards 2013: Adam Steltzner of the Mars Rover Team (1:48)
Preview thumbnail for video'Did Atlantis Really Have Indoor Plumbing?
Did Atlantis Really Have Indoor Plumbing? (3:36)
Preview thumbnail for video'The One Place JFK Felt He Could Be Alone
The One Place JFK Felt He Could Be Alone (1:23)
Preview thumbnail for video'Does 'The Last Supper' Really Have a Hidden Meaning?
Does 'The Last Supper' Really Have a Hidden Meaning? (4:03)
Preview thumbnail for video'What Is a Rattlesnake's Rattle Actually Made of?
What Is a Rattlesnake's Rattle Actually Made of? (1:11)
Preview thumbnail for video'Why Is This Lizard Doing Push-Ups?
Why Is This Lizard Doing Push-Ups? (1:47)
Preview thumbnail for video'The Smiley Face Was Invented for Corporate America
The Smiley Face Was Invented for Corporate America (3:42)
Preview thumbnail for video'How the Thinnest Burmese Gold Leaf Is Made
How the Thinnest Burmese Gold Leaf Is Made (2:00)
Preview thumbnail for video'Leopards Treat Marula Trees Like Pantries for Their Kills
Leopards Treat Marula Trees Like Pantries for Their Kills (3:42)
Preview thumbnail for video'Does China's Only Female Emperor Deserve Her Bad Rap?
Does China's Only Female Emperor Deserve Her Bad Rap? (2:17)
Preview thumbnail for video'The Burmese Monument That Appears to Defy Gravity
The Burmese Monument That Appears to Defy Gravity (2:51)
Preview thumbnail for video'The Daring Plan to Steal Nazi Radar Technology
The Daring Plan to Steal Nazi Radar Technology (3:05)
Preview thumbnail for video'What Is the Glass Palace Chronicle and Why Is It Important?
What Is the Glass Palace Chronicle and Why Is It Important? (1:14)
Preview thumbnail for video'Why Tomb Raiders Treated This Priceless Gem Like Trash
Why Tomb Raiders Treated This Priceless Gem Like Trash (2:02)
Preview thumbnail for video'A Hungry Snake Finds a Whole Colony of Sociable Weavers
A Hungry Snake Finds a Whole Colony of Sociable Weavers (1:53)
Preview thumbnail for video'How Yellowstone Scientists Really Combat Invasive Species
How Yellowstone Scientists Really Combat Invasive Species (2:31)
Preview thumbnail for video'Star Trek's Nichelle Nichols on Uhura's Radical Impact
Star Trek's Nichelle Nichols on Uhura's Radical Impact (4:05)
Preview thumbnail for video'What These Mysterious Scrolls Tell Us About Women in Petra
What These Mysterious Scrolls Tell Us About Women in Petra (2:17)
Preview thumbnail for video'Do Sharks Associate Boats With Food?
Do Sharks Associate Boats With Food? (3:40)