Harrisburg Rail Bridge, PA, USA

Harrisburg Rail Bridge, originally uploaded by Hershey Harrisburg Regional Visitors Bureau.

Harrisburg has been an important location for statewide transportation since selected as the capital of Pennsylvania in 1812. The canal system and subsequent development of railroads, highways and airlines in the early century played a key role in transforming Harrisburg into a commercial and distribution center for Pennsylvania and the East. The city is centrally located 80 miles north of Baltimore, 100 miles west of Philadelphia, and 100 miles north of Washington D.C.
source & more @: http://wikitravel.org/en/Harrisburg