The city has a small community of Palestinians, mostly descendants of Palestinian Christian families who immigrated from Palestine in the late 19th and early 20th century, with the highest rate of immigration between 1910 and 1925. The city also has Korean Evangelical Churches that hold services in the Korean language for a growing Korean population. San Salvador is rich in Spanish heritage, and its historical center contains architecture of a kind not found elsewhere in Latin America. The Metropolitan Cathedral was built in the 1950s combining Baroque and eclectic styles of architecture. The National palace, built in 1905, is a mix of Gothic, Neoclassical, and Renaissance Revival architecture. The National Theater is the oldest theater in Central America, being built in 1917 in the French Renaissance Revival style with details in the Rococo, Romantic and Art Nouveau architectural styles. The building contains three levels of seats, including a Presidential box at the center of the second level, and has seating for 650 people. The structure is surmounted by an ellipsoidal dome, the interior of which is adorned with a mural painted by Carlos Cañas and a crystal chandelier. San Salvador is also home to the museum "Museo de Arte de El Salvador" (MARTE), whose collection includes artworks dating from the mid-19th century to the contemporary era. The museum has held temporary exhibitions of works by internationally renowned artists like Picasso, Rembrandt, Salvador Dalí and Joan Miró. The "Museo Nacional de Antropología" (MUNA) or National Museum of Anthropology, founded in 1883 by Dr. David J. Guzmán, has exhibits on human settlements, agriculture, artisans, commerce and trade, religion, arts and communication. The museum aims to foster cultural awareness for Salvadorans through exhibitions, research, publications and educational programs. In 2011, the Union of Ibero-American Capital Cities or "Unión de Ciudades Capitales Iberoamericanas" (UCCI), selected San Salvador as a "Latin American capital of culture", recognizing San Salvador's cultural diversity. The city government is restoring the downtown area, with the goal of celebrating the city's past and promoting cultural diversity. The symbols of the city are the shield, flag, anthem, and staff of office. The first three were created as a result of a contest launched in 1943. The shield (designed by the painter José Mejía Vides) is divided into four quadrants: the two quadrants at the top right and bottom left have blue and white fields symbolizing the national flag; the top left quadrant displays a symbolic emerald necklace; and the lower right contains the bell of the Church of La Merced, representing the birth of El Salvador's independence movement in 1811, when José Matías Delgado rang the bells.