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) of the Panama Canal. Davidson believed an expo would help improve commerce (it would advertise that San Diego was the first U.S. port of call vessels encountered after passing through the canal and sailing north), build the city's population, and expand the infrastructure of the park. He later explained the significance of holding the expo in San Diego: After a 1910 contest to rename City Park, the park was named after Vasco Núñez de Balboa, the first European to cross Central America and see the Pacific Ocean. San Diego would be the smallest city to ever hold a World's Fair;