Make your way along Cushing St.These adobe buildings along Cushing Street, built in the Sonoran row-house style in the late 1800s, are part of Barrio Viejo, one of Tucson’s oldest neighborhoods. On the front of No. 124, note the decorated canales, long metal spouts that direct rainwater away from the adobe walls. This area of Tucson grew in population in the late 1800s and early 1900s and became very ethnically diverse. It included residents of Mexican, Chinese, Jewish, African-American and a variety of European backgrounds. Most of the Chinese immigrants came to work on the railroad in 1880 and then ventured into farming and running small grocery stores.