"Brightsource Ivanpah Solar Electric Generating System, a solar thermal electric generating facility, Mojave Desert, San Bernardino County, California, United States, North America"

"Brightsource Ivanpah Solar Electric Generating System, a solar thermal electric generating facility, Mojave Desert, San Bernardino County, California, United States, North America"

"Brightsource Ivanpah Solar Electric Generating System, a solar thermal electric generating facility, Mojave Desert, San Bernardino County, California, United States, North America"

"Brightsource Ivanpah Solar Electric Generating System, a solar thermal electric generating facility, Mojave Desert, San Bernardino County, California, United States, North America"

The polluted Tijuana River as it enters the United States from Mexico, San Ysidro, California, USA, North America

A neighborhood in Tijuana, Mexico, behind the fence that separates the United States and Mexico, San Ysidro, California, USA, North America

The Border Patrol's new fence between the United States and Mexico, which has been repeatedly patched after holes were cut in it, San Ysidro, California, USA, North America

The U. S. Border Patrol's "Surf Fence Project" extends the border fence between the United States and Mexico further into the Pacific Ocean, San Ysidro, California, USA, North America

The U. S. Border Patrol's "Surf Fence Project" extends the border fence between the United States and Mexico further into the Pacific Ocean, San Ysidro, California, USA, North America

The polluted Tijuana River as it enters the United States from Mexico, the yellow line in the foreground is the boundary between the United States and Mexico, San Ysidro, California, USA, North America

The international border between the United States and Mexico; the tower on the left side of the road holds cameras for day and night surveillance, the Border Patrol's new fence at right and Tijuana on the left, San Ysidro, California, USA, North America

U. S. Border Patrol agent Joe Velasquez in the area between the old and new border fences between the United States and Mexico, Tijuana neighborhood across the old fence at left, San Ysidro, California, USA, North America

Golden Gate Bridge, San Francisco, California, United States, North America

"Golden Gate Bridge, San Francisco, California, United States, North America"

"Willets (Tringa semipalmata) in the intertidal zone, Oceanside, San Diego, California, United States, North America"

"Willets (Catoptrophorus semipalmatus) in the intertidal zone, Oceanside, near San Diego, California, United States, North America"

"Willets (Tringa semipalmata) in the intertidal zone, Oceanside, San Diego, California, United States, North America"

"Skyline of San Francisco, Embarcadero, San Francisco, California, United States, North America"

"Golden Gate Bridge from underneath, San Francisco, California, United States, North America"

"Golden Gate Bridge in fog, San Francisco, California, United States, North America"

"Brown Pelicans (Pelecanus occidentalis) above a shoal of fish, Oceanside, near San Diego, California, United States, North America"

"Graffiti on a house wall, Haight-Ashbury, San Francisco, California, United States, North America"

"Painted Ladies, Victorian architecture, Alamo Square, San Francisco, California, United States, North America"

"Turkey Vulture (Cathartes aura) in flight, San Francisco, California, United States, North America"

"San Diego's downtown at night, San Diego, California, United States, North America"