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51Olympic National Park — IUCN Category II (National Park) …
52Mount Rainier National Park — IUCN Category II (National Park) Nisqually entrance …
53Congestion pricing — Typical traffic congestion in an urban freeway. Shown here I 80 Eastshore Freeway, Berkeley, United States …
54Eastern span replacement of the San Francisco–Oakland Bay Bridge — As of December, 2007, work is continuing on the eastern span replacement of the San Francisco–Oakland Bay Bridge. The new eastern span is currently scheduled to open to traffic in 2013. [ [http://www.baybridgeinfo.org/Display.aspx?ID=21 San… …
55Seattle — This article is about the city. For other uses, see Seattle (disambiguation). Seattle   City   City of Seattle …
56Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
57Late-2000s financial crisis — The TED spread (in red) increased significantly during the financial crisis, reflecting an increase in perceived credit risk …
58Gray Davis — This article is about a Governor of California. For the North Carolina politician and lawyer, see Joseph J. Davis. For the pipe organ builder, see Gray Davison. Gray Davis Gray Davis on September 2, 2010. 37th Governor of California …
59I-35W Mississippi River bridge — This article is about the bridge that collapsed in 2007. For the replacement bridge, see I 35W Saint Anthony Falls Bridge. Mississippi River Bridge …
60Plunketts Creek (Loyalsock Creek) — Geobox | River name = Plunketts Creek category = Creek image size = image caption = Plunketts Creek looking upstream, just north of the mouth in Plunketts Creek Township country = United States country state = Pennsylvania district type =… …
