Opened in 1913, the Manila Aquarium was a very popular tourist attraction during the American colonial period, but was closed down during World War II. It resumed operations after the war, but again closed its doors in 1983. The current revival dates from 1998. The aquarium, renamed Acuario de Manila, displays a fascinating diversity of marine life in tanks set against the old adobe walls of one of fortifications along the walls of Intramuros. Admission: PHP50.