Background material for the coastal city

Environmentally contaminated cities

"Shanghai City Nightview"

London Street, England

Street view of American cities

Cars on the street

The grass and the trees under the blue sky

High-rises under the blue sky

The fountain in the square

Blue sky clouds and monuments

Buildings and ships

Fountains and Christianity

The boat in the water

The building under the blue and white clouds

A building under the blue sky