World

by Thomas C. Frohlich and Alexander E.M. Hess

by Bill Murphy Jr

by Victor Luckerson

by Sanjay Sanghoee

by David Stout

by Dan Kadlec

by Martha C. White

by Nash Jenkins

by Erica Fahr Campbell

by Nash Jenkins

by Per Liljas

by David Johnson

by Melissa Hellmann

by Simon Shuster

by TIME Staff