This grand building, with its Greek Revival architectural style, stands out among the narrow Old Town houses on the cobblestone street. Built in 1851, the Athenaeum has been many things: the Bank of the Old Dominion, where Robert E. Lee kept his money prior to the Civil War; a commissary for the Union Army during the Civil War; a church; a triage center where wounded Union soldiers were treated; and a medicine warehouse. Now the hall serves as an art gallery and performance space. Pop by to admire the Athenaeum’s imposing exterior, including the four soaring Doric columns and its interior hall: 24-foot-high ceilings, enormous windows, and whatever contemporary art is on display. Allot 20 minutes.