The terrain gets progressively hillier the farther east you ride. The route crosses the Ohio River on the Wheeling Suspension Bridge, built in 1849. It was built as part of the National Road and was the first bridge to span the Ohio River. Pittsburgh, the “Steel City,” is located upriver at the confluence of the Allegheny and Monongahela rivers. Many of its neighborhoods have steep slopes and 23 inclined railways, also called funiculars, were built in the late 1800s to accommodate travel and transport. The Monongahela and the Duquesne inclines are the only two left in existence. From Pittsburgh, the route heads northeast, then parallels Interstate 80 across Pennsylvania. Click on enlargement for detail.