Emma Lantos/Courtesy

The sun sets over the Zambeze River in Zambia.

Nick Fradkin/Courtesy

Coit Tower in San Francisco.

Michael Kang/Courtesy

A bridge connecting North Korea and China. The snow-covered part of the bridge is North Korean territory while the cleared part of the bridge is Chinese territory.

Anna Vignet/Courtesy

Bicyclists ride through the Stockton tunnel in Critical Mass in San Francisco on September 25. Critical Mass is a monthly bicycle ride to celebrate cycling and to assert cyclists’ right to the road.

Tags: bicyclists, Critical mass, San Francisco, Stockton tunnel, Vignet

Michael Kang/Courtesy

G-Dragon, a member of the Korean hip-hop group Bigbang, performs in South Korea.

Michael Kang/Courtesy

The Hong Kong skyline at 8 p.m. Music is usually played daily at 8 p.m. and a light show accompanies the music.

Emma Lantos/Courtesy

A pride of lions relaxes in a national park in Zambia.

Anne Marie Schuler/Courtesy

Victoria Falls as seen from a helicopter. Victoria Falls is in two countries, Zambia and Zimbabwe.

David Herschorn/Courtesy

A man’s stands in the street in Tunisia.

Anne Marie Schuler/Courtesy

A child from a school on the small island Impanila in Namibia.