Step back in time and into the partially restored 1863 tenement building at 97 Orchard Street, where you can view the apartments of Natalie Gumpertz, a German-Jewish dressmaker (dating from 1878); the Confino family, Sephardic Jews from Kastoria, Turkey, which is now part of Greece (1916); the Rogarshevsky family from Eastern Europe (1918); and Adolph and Rosaria Baldizzi, Catholic immigrants from Sicily (1935). The tour through the Confino family apartment is designed for children, who are greeted by a costumed interpreter playing Victoria Confino. This is America's first urban living-history museum dedicated to the life of immigrants, and reservations are suggested for the guided tour. The museum also leads a walking tour around the Lower East Side. If you wish to forgo the tours, you can watch a free historical slide show as well as a video with interviews of Lower East Side residents past and present. The gallery (free) has changing exhibits relating to the neighborhood's history. Tours are limited to 15 people. COST: Tenement and walking tours, each $10; Confino apartment tour $9. Subway: F, J, M, Z to Delancey/Essex Sts.