Elfreth's Alley is one of the oldest continuously inhabited residential streets in the United States. Located in Old City, Philadelphia, Elfreth's Alley dates back to 1703 and is an exceptional collection of early American structures built between 1720 and 1836. Most of the homes are privately owned residences, but #124 and #126 are the Elfreth's Alley Museum, run by the Elfreth's Alley Association, and have been restored to their 18th and 19th century appearance. The Association was founded in 1934 to preserve and protect the Alley and tell the story of its inhabitants, who were primarily artisans and working-class laborers. The Alley receives over 300,000 annual visitors from all over the world.