Aerial view of Goma, Democratic Republic of Congo, Africa

A view of the industrial and militarized Russian seaport city of Murmansk on the northern shore of the Kola Peninsula, Murmansk Oblast, Russia, Arctic, Europe

Aerial of Goma, Democratic Republic of Congo, Africa

View of Jinhua City and Jinhua Mountain range in the background on an overcast day, Jinhua City, Zhejiang Province, China

Ho Chi Minh city (Saigon) skyline with colorful house, Ho Chi Minh City, Vietnam

View of apartment blocks in Xian seen from the Dayan Pagoda, China

Skyline, Fez. Morocco

Chefchaouen. Morocco

Fez. Morocco

Roofs of the medina, Fez. Morocco

Medina, UNESCO World Heritage Site,Tetouan, Morocco

Skyline Sao Paulo Brazil

A lone, young man walks along a long, empty, prairie, dirt road found along the foothills that border the Rocky mountains in southern Alberta during October of 2005. Much of this area of low population density, large ranches and farms nestled at the base of the southern Rocky mountains is changing hands to concentrations of people in tight and clustered housing with paved roads.

Crammed Hong Kong apartment blocks at dusk; Hong Kong, Hong Kong Special Administrative Region (SAR), Hong Kong

View over Johannesburg from Hillbrow; Hillbrow, Johannesburg, Gauteng, South Africa