Balboa Park (San Diego) failed and is scheduled for completion in 2019. El Prado, a long, wide promenade and boulevard, runs through the park's center. Most of the buildings lining this street are in the Spanish Colonial Revival architecture style, a richly ornamented mixture of European Spanish architecture and the Spanish Colonial architecture of New Spain-Mexico. Along this boulevard are many of the park's museums and cultural attractions, including the San Diego Museum of Man, the San Diego Museum of Art, the Museum of Photographic Arts, the San Diego Art Institute, the San Diego Model Railroad Museum, the San Diego Natural History Museum, the
Balboa Park (San Diego) the northwest corner of the park, while the southwest corner of the rectangle is occupied by a portion of the Cortez Hill neighborhood of Downtown San Diego and San Diego High School, both of which are separated from the park by Interstate 5. Also encroaching on the northern perimeter of the park is Roosevelt Middle School. Two north-south canyons—Cabrillo Canyon and Florida Canyon—traverse the park and separate it into three mesas. The Sixth Avenue Mesa is a narrow strip bordering Sixth Avenue on the western edge of the park, which provides areas of passive recreation, grassy spaces, and tree groves.