July 15 2013

 China

Underwater Bottlenose Dolphins

(© Stephen Frink/The Image Bank/Getty Images)

United Kingdom

Abandoned House Filled with Drifting Sand,Kolmanskop,Namibia

(© Jeremy Woodhouse/Age Fotostock)

Australia,Canada,Germany,France,Japan

Rotunda of the Smithsonian Institution National Museum of Natural History in Washington D.C.,US

(© National Geographic Image Collection/Alamy)

New Zealand,United States

Pixie-Cup Lichen Growing on a Post

(© Robert Faller)