manages the collections of the Museo de Arte Contemporáneo de Sevilla. It also houses the rectory of the UNIA. In the years that Queen Isabel II ruled as an adult, the Sevillian bourgeoisie invested in a construction boom unmatched in the city's history. The Isabel II bridge, better known as the Triana bridge, dates from this period. The residence of the Dukes of Montpensier in the Palacio de San Telmo was so extravagant it was said to be vying for second Court of the kingdom. During this period street lighting was expanded in the municipality and most of the streets were paved. By the second half of the 19th century Seville began an expansion supported by railway construction and the demolition of part of its ancient walls, allowing the urban space of the city to grow eastward and southward. The Sevillana de Electricidad Company was created in 1894 to provide electric power throughout the municipality, and in 1901 the Plaza de Armas railway station was inaugurated. The Museum of Fine Arts (Museo de Bellas Artes de Sevilla) opened in 1904. 20th Century Preparations and construction began in 1910 for the Ibero-American Exposition of 1929, a world's fair held in Seville from 9 May 1929 until 21 June 1930. The exhibition buildings were constructed in María Luisa Park along the Guadalquivir River. A majority of the buildings were built to remain permanently after the closing of the exposition. Many of the foreign buildings, including the United States exhibition building, were to be used as consulates after the closing of the exhibits. By the opening of the exposition all of the buildings were complete, although many were no longer new. Not long before the opening, the Spanish government also began a modernization of the city in order to prepare for the expected crowds by erecting new hotels and widening the mediaeval streets to allow for the movement of automobiles. Spain spent millions of pesetas in developing its exhibits for the fair and constructed elaborate buildings to hold them. The exhibits were designed to show the social and economic progress of Spain as well as expressing its culture. The Spanish architect Aníbal González designed the largest and most famous of the buildings which surrounded the Plaza de España to showcase Spain's industry and technology exhibits. González combined a mix of 1920s Art Deco and 'mock Mudejar', and Neo-Mudéjar styles. The Plaza de España