The lantern room, widows walk and cupola of a lighthouse. Covers

The lantern room, widows walk and cupola of a lighthouse. CoversThe lantern room, widows walk and cupola of a lighthouse. Smoky Cape Lighthouse, Hat Head National Park, New South Wales, Australia.

The leaves of a bright green Grass Tree vibrate and dance in the wind

Tourists and researchers explore the shore of an uninhabited island

A steel girder is bolted and glued to a sidewalk to support a building damaged in an earthquake

A pair of wagon wheels rest in the mud at the bottom of a wetland

A small boy wearing a life jacket and wetsuit trails his fingers in the ocean from a wooden dhow

Torres Del Paine National Park Biosphere Reserve Chile

on a tropical reef

Waitabu Marine Park

Light snow covers a forest of snow gum around a small alpine pool

Researchers explore the vast frozen sea ice with a Coast Guard icebreaker in the distance

Mud on a drought-stricken farm bakes and cracks in the sun

The National Gallery of Art Sculpture Garden