Elfreth's Alley is a historic street in Philadelphia, dating back to 1703. There are 32 houses on the street which were built between 1703 and 1836. The Elfreth's Alley Museum is located at #124 and 126. The alley is a National Historic Landmark. Located in the Old City neighborhood, Elfreth's Alley is between North 2nd Street and North Front Street, in the block between Arch and Quarry Streets.