• Seattle's popular landmark, the Space Needle, was inaugurated on April 21, 1962. During the space-age themed world fair called Century 21 Exhibition, more than 20,000 Americans visited the monument every day. The fair drew more than 2.3 million visitors to the monument overall.
• Made popular by Elvis Presley and greater airline connectivity, the Hawaiian Islands were the most popular holiday destination during the 1960s.
• With a growing interest in the developing American space program, the Kennedy Space Center in Florida became very popular in the 1960s. In 1963, the Space Center allowed drive-through tours on Sunday afternoons and almost 100,000 visitors visited during the first year. In 1965, the tours were expanded and included other parts of the Space Center.
• The Walt Disney World Resort in Orlando, Florida was inaugurated on October 1, 1971. On the first day of inauguration, 10,000 fans visited the theme park. Initially, the theme park had six themed areas called Adventureland, Main Street USA, Frontierland, Liberty Square, Fantasyland, and Tomorrowland. The popularity of the theme park greatly increased over the years. With cheap gasoline, new interstate highways, and budget motels like Howard Johnson's, the theme park was highly affordable as a summer vacation destination for everyone 50 years ago.
• Following huge interest in the American wine scenery, Napa Valley in California became a popular destination for wine lovers in the 1970s.

Summary of the Findings

• From the initial hour of research, we could obtain a number of holiday destinations within the USA popular from the 1960s to the 1990s. However, specific information targeting middle-income and upper-middle income groups living in the central, midwestern and southern states of the USA is not available in the public domain. Hence, we have furnished a few of the top holiday destinations within USA between the 1960s and 1990s. The combined central, midwestern and southern states cover almost 70% of the total US states and due to the large number of visitors, it can be assumed that most of them fall under the middle income and upper-middle income categories.