The neon lights of Shanghai's main shopping street, Nanjing Donglu, Shanghai, China, Asia

The neon lights of Shanghai's main shopping street, Nanjing Donglu, Shanghai, China, Asia

The neon lights of Shanghai's main shopping street, Nanjing Donglu, Shanghai, China, Asia

Cityscape view go high density buildings in city centre including the Cathedral church, Malaga, Andalusia, Spain, Europe

Cityscape view over city centre high density buildings with cathedral church in centre, Malaga, Andalusia, Spain, Europe

High density roof top view of buildings crowded together in the city centre of Faro, Algarve, Portugal, Europe

High density buildings looking east towards Xewkija from the town of Rabat Victoria Gozo, Malta, Mediterranean, Europe

Cityscape view of high density buildings in city centre with Plaza de Merced in lower right, Malaga, Andalusia, Spain, Europe

View over Colombo from the Lotus Tower, Colombo, Sri Lanka

Monster Buildings illuminated at night, Quarry Bay, Hong Kong, China

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

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

Aerial view of big Intersection in Ginza, looking over the streets and skyscraper facades, Tokyo, Honshu, Japan, Asia

View of traffic and highrise buildings in the Akasaka District of Minato, Minato City, Tokyo, Honshu, Japan

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

Skyline, Fez. Morocco

Chefchaouen. Morocco

Fez. Morocco

Roofs of the medina, Fez. Morocco

Medina, UNESCO World Heritage Site,Tetouan, Morocco

La Manga del Mar Menor, Murcia, Spain

Aerial view of the Levante beach and the skyline by night. Benidorm. Alicante. Valencia Community. Spain

Gaia satellite image of stars near the Galactic Center

Skyline Sao Paulo Brazil

Snow Covered Teepee Banff National Park Canada

Foliage Queensland Australia

Typical traffic in Nha Trang, Vietnam, Asia

Slum (favela) Rio Comprido, Rio de Janeiro, Brazil

Middle East, Jordan, Dead Sea, 400 metres below sea level

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

Bumper to bumper traffic

Tara Oceans Expeditions - May 2011. CTD-Rosette (Conductivity Temperature Density instrumental platform with 7 additional sensors)

Tara Oceans Expeditions - May 2011. CTD-Rosette (Conductivity Temperature Density instrumental platform with 7 additional sensors), galapagos

Short-beaked Echidna (Tachyglossus aculeatus), an oviparous mammal of Australia. Short-beaked Echidnas feed on Ants and termites, the spiky coat, which can differ in color and density in Australia, is protecting the Echidna from predators. Australia, South Australia

Tara Oceans Expeditions - May 2011. CTD-Rosette (Conductivity Temperature Density instrumental platform with 7 additional sensors), Galapagos

Tara Oceans Expeditions - May 2011. CTD-Rosette (Conductivity Temperature Density instrumental platform with 7 additional sensors), Galapagos

Tara Oceans Expeditions - May 2011. CTD-Rosette (Conductivity Temperature Density instrumental platform with 7 additional sensors), Galapagos