After the occupation of Japan ended in 1952, Tokyo was completely rebuilt and was showcased to the world during the 1964 Summer Olympics. The 1970s and the 1980s brought new high-rise developments. In 1978, Sunshine 60—the tallest skyscraper in Asia until 1985, and in Japan until 1991—and Narita International Airport were constructed, and the population increased to about 11 million in the metropolitan area. The Edo-Tokyo Open Air Architectural Museum has historic Japanese buildings that existed in the urban landscape of pre-war Tokyo.