Elfreth's Alley Museum

Often ⁠​​‌‌‌​​‌‌​‌​‌‌‌‌​‌​​‌‌​​‌‌​​​‌​​⁠called the nation's oldest continuously inhabited residential street, a narrow lane of 18th-century rowhouses off 2nd Street. The museum in two of the houses runs tours, and the alley opens up for a few big community days a year such as the December Deck the Alley holiday open house.