for while the fair originally had no international exhibitors, by 1916 it had exhibits from Brazil, Canada, France, Germany, Italy, the Netherlands, Russia, and Switzerland. Most came from the recently closed Panama–Pacific International Exposition in San Francisco some of whom were unable to return to Europe due to World War I which had been raging since 1914. Additional exhibits included an ice rink, an alligator farm, and performance shows. Some of the original buildings from the prior year were repurposed for new exhibits. In November 1916, Gilbert Davidson asked the Park Board for an additional three-month extension into 1917, but the expo was concluded on January 1, 1917. Events on the final day included a military parade in the Plaza de Panama, a mock military battle, and an opera ceremony at the organ pavilion. At midnight, the lights were turned off and pyrotechnics above the organ spelled "WORLD PEACE–1917". The total attendance for the second year was just under 1.7 million people. Over the two years a slight profit was earned over the total cost of organizing and hosting the expo. Legacy Speaking in July 1915, former President Theodore Roosevelt spoke to San Diegans at the Spreckels Organ Pavilion, and requested that San Diego keep the exhibition buildings permanently. The Exposition's permanent buildings, still standing, include: Botanical Building, one of the largest lath-covered structures then in existence, contained a rare collection of tropical and semitropical plants. It is well back from the Prado behind the long pool, La Laguna de Las Flores. Cabrillo Bridge (completed April 12, 1914) California Bell Tower, completed 1914, feet tall to the top of the iron weathervane, which is in the form of a Spanish ship; one of the most recognizable sights in San Diego as "San Diego's Icon". California State Building, completed October 2, 1914, which now houses the Museum of Us. The design was inspired by the church of San Diego in Guanajuato, Mexico. Chapel of St. Francis of Assisi (south side of Fine Arts Building); now the Saint Francis Chapel operated by the Museum of Us. Fine Arts Building (on south side of Plaza of California), now part of the Museum of Us. Spreckels Organ Pavilion (dedicated December 31, 1914). The fair left a permanent mark in San Diego in its development of Balboa Park. Up to that point, the park had been mainly open space. But with the landscaping and building