October 19 2013

Australia

Ground-Level view of the Sydney Opera House in New South Wales,Australia

(© Harald Deppeler/National Geographic My Shot/National Geographic Society/Corbis)

Canada,Germany,France,Japan,United Kingdom

Studena Dam in Struma River,Bulgaria

(© Ivan Pendjakov/age fotostock)

China

Inside the Bund Sightseeing Tunnel under the Huangpu River in Shanghai,China

(© Gavin Hellier/Alamy)

 

New Zealand, United States

Raised Boardwalk and white birch trees in Sackville Waterfowl Park,Sackville,New Brunswick,Canada

(© Dale Wilson/Getty Images)

October 18 2013

Rega Laila Manor,Sintra,Portugal

(© benitojuncal/Getty Images)

Australia,Canada,France,United Kingdom

Raised Boardwalk and white birch trees in Sackville Waterfowl Park,Sackville,New Brunswick,Canada

(© Dale Wilson/Getty Images)

Germany,New Zealand,United States

Long-Exposure Photograph of Fireflies in a Forested Area Near Nagoya City,Japan

(© Yume Cyan)

 Japan

Mountain Viscacha (Lagidium Viscacia) Yawning,Near the Salt Lake Salar de Surire,In the Province of Parinacota,Far Northern Chile

(© Bob Wickham/Oxford Scientific/Getty Images)

October 11 2013

China

Raised Boardwalk and white birch trees in Sackville Waterfowl Park,Sackville,New Brunswick,Canada

(© Dale Wilson/Getty Images)

Australia,Canada,Germany,France,United Kingdom

Aerial view of the Coastline at Sand Point,Somerset,England,UK

(© Richard Cooke/Alamy)

 Japan,New Zealand,United States

Palace of Fine Arts in the Marina District of San Francisco,California,US

(© vns24@yahoo.com/Getty Images)