Photograph by Lynsey Addario – two women on the side of the mountain, in burkas and without a man.

Photograph by Michael Melford – Chikuminuk Lake reflects the raw wilderness of 1.6-million-acre Wood-Tikchik State Park. One of the largest state parks in the U.S

Photograph by Randy Olson – Its steaming streets crammed with vendors, pedestrians, and iconic Ambassador taxis, Kolkata throbs with some 16 million people—and more pour in every day from small towns.

Photograph by Amy Toensing – On a drying lake bed in Victoria, a farmer in 2007 alerted scientists to a major find: well-preserved tracks of a Diprotodon.

Photograph by Brian Skerry – Hunting for morsels of plankton, a school of spadefish hovers near the surface off Japan’s subtropical Bonin Islands.

Photograph by Carsten Peter – Going underground, expedition members enter Hang En, a cave tunneled out by the Rao Thuong River.