With freezing temperatures and snow throughout the day, Boulder County turned into a winter wonderland for those willing to ...

21.This is one of the last pictures taken of President Harry S. Truman, shortly before his death in 1972: 22.The picture, ...

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges ...

Shock and grief have given way to finger-pointing over whether additional security could have stopped — or mitigated — the ...