ATHENS, Ga. — To most passersby, the old, abandoned railroad trestle off Poplar Street near Dudley Park probably wouldn’t garner much of a reaction. But, to music fans, especially those of Athens native R.E.M., the trestle is a landmark. Gracing the back of the band’s 1983 album “Murmur,” the bridge is best known today as the Murmur Trestle. The trestle was built in 1883 and served the Georgia Railroad and later CSX Transportation, according to the Athens Banner-Herald. The bridge hasn’t been in use since 1998. “To R.E.M. fans, the trestle represents a piece of R.E.M.’s history,” one fan told