Central Park in NYC has many beautiful pedestrian bridges with different rustic design styles.  Most are stone clad but a few are made of cast iron.  One of the nicest is the Bow Bridge.  It is a cast iron arch bridge constructed in 1862.  It has two fascia arches with deck framing and spans 87 feet.  The very photogenic bridge was photographed in October and November by Adam Frank, with some spectacular photos below.