This street full of bars and clubs is one of the Madrid's prime nightlife areas. When exploring this area, you can hop in some of the best bars and restaurants in the city, see some flamenco shows, or visit a house where the famous Spanish writer, Miguel de Cervantes, died.
Wikipedia (Spanish) http://es.wikipedia.org/wiki/Calle_de_las_Huertas
Address Calle de Las Huertas, Madrid, Spain
Coordinates 40°24'48.056" N -3°41'51.001" E