G-20: Pittsburgh welcomes the world!

Image: Signs are seen near the site of the upcoming G20 Pittsburgh Summit in Pittsburgh, Pennsylvania.
Photographs: Eric Thayer/Reuters

G-20: Pittsburgh welcomes the world!

Image: A view of downtown Pittsburgh from the Duquesne Incline on Mt. Washington.
Photographs: David A. DeNoma/Reuters

G-20: Pittsburgh welcomes the world!

Image: A pedestrian walks towards a group of Pennsylvania State Troopers as they patrol downtown Pittsburgh.
Photographs: Jason Cohn/Reuters

G-20: Pittsburgh welcomes the world!

Image: Greenpeace activists hang from a large banner on a bridge near the site of the upcoming G20 Pittsburgh Summit in Pittsburgh.
Photographs: Eric Thayer/Reuters

G-20: Pittsburgh welcomes the world!

Image: Demonstrators protest near the site of the upcoming G20 Pittsburgh Summit in Pittsburgh.
Photographs: Eric Thayer/Reuters

G-20: Pittsburgh welcomes the world!

Image: A Pennsylvania National Guard officer at the Multi-Agency Communications Center in Pittsburgh.
Photographs: Jason Cohn/Reuters

G-20: Pittsburgh welcomes the world!

Image: Demonstrators protest in front of a bank building near the site of the upcoming G20 Pittsburgh Summit in Pittsburgh.
Photographs: Eric Thayer/Reuters

G-20: Pittsburgh welcomes the world!

Image: Police on horseback patrol the streets in advance of the G20 Pittsburgh Summit.
Photographs: Jim Young/Reuters

G-20: Pittsburgh welcomes the world!

Image: A protestor carries a mock coffin as he demonstrates with a group of AIDS activists holding a funeral procession near the site of the upcoming G20 Pittsburgh Summit in Pittsburgh.
Photographs: Eric Thayer/Reuters