north america

Footprints in the snow, Centre St

Disabled bus after a snowstorm

Lightning over Milwaukee

Desert hills showing erosion patterns

Painted wall and elevated roadway

Aerial view of a headland in Virginia

Terra Ceia aquatic preserve from the air

Sign on gates of school closed due to fears of swine flu

Security guard wearing face mask against swine flu

Looking south down Centre St

Fields seen from the air

New Yorkers evacuated from a building after an earthquake