Region
United States
756
Alaska
10
Washington (D.C.)
10
Washington Metropolitan Area
10
California
9
Illinois
8
Pennsylvania
7
Chicago
6
Northeastern States
6
Canada
5
Colorado
5
New York (State)
5
Panama Canal (Panama)
4
Buffalo
3
Denver
3
Massachusetts
3
Middle West
3
Montana
3
New Jersey
3
Ohio
3
Philadelphia
3
Saint Lawrence Seaway
3
Seattle
3
Washington (State)
3
Antelope Valley
2
Atlantic City
2
Boston
2
Chicago Metropolitan Area
2
Chicago O'Hare International Airport
2
Costs
2
Cypress Street Viaduct (Oakland, Calif.)
2
Darien Gap Highway (Colombia and Panama)
2
East Bay
2
Florida
2
Great Britain
2
Great Lakes (North America)
2
Idaho
2
Iowa
2
Japan
2
Lancaster
2
Mexico
2
Nebraska
2
New York
2
North America
2
North Carolina
2
Oakland
2
Oklahoma
2
Philadelphia Region
2
South Carolina
2
Virginia
2
more ...