The Foster Mansion On 103rd Street And “13th Avenue” In West Harlem, New York, 1879 Posted on 08/26/2021 by Harlem World Magazine — Leave a reply This is 310 Riverside Drive at 103rd Street in Harlem, NY, looking north from the top of the stairs next to the stone wall from 1879. Continue Reading → Become a Harlem insider - Sign-Up for our Newsletter!