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In addition to using libraries and visiting art historic site visitation is another common form of public engagement with the humanities. According to the National Endowment for the
Arts' Survey of Public Participation in the Arts (SPPA), the percentage of people making at least one such visit fell steadily from 1982 to 2012, before rising somewhat in 2017. Visits to historic sites managed by the National Park Service (NPS) were substantially higher in 2018 than 1980, despite a decline in recent years, 

While visitation rates are converging among the age cohorts, the differences by level of educational attainment are still pronounced. In 2017, as in earlier years, the visitation rate among college graduates was more than twice as high as the rate among those who finished their studies with a high school diploma (43% as compared to 17%). Among those
who did not finish high school, visitation rates were below 10% throughout the 2008-2017 time period. Conversely, among Americans with a graduate or professional degree, visitation rates were in the vicinity of 50% during these years.

Data from the National Park Service (NPS) indicate the types of historic sites visited most and also the demands made of these sites' physical infrastructure and staff. Visits to NPS historic sites rose from approximately 59.5 million in 1980 to almost 112 million in 2018. Throughout this time period, visits to historic sites constituted approximately a third of
total NPS recreational visitation. 

Since hitting a recent low in visits in 1995, total visits to historic sites of all types increased 58% to a high of 120.3 million in 2016, before falling 7%, to 111.9 million visits in 2018.

Dame Much of the recent growth in visits to historic sites occurred among parks classified as national memorials and was driven by a particularly high level of visitation at sites that did not exist in 1995, such as the Franklin Delano Roosevelt Memorial (3.3 million visitors in 2018), the Martin Luther King, Jr. Memorial (3.6 million visitors), and the World
War II Memorial (4.7 million visitors). As a result, visits to national memorials increased more than 300% from 1995 to 2016, even as the number of sites increased just 26% (from 23 to 29). In comparison, visits to national monuments increased only 3%, even as the number of sites in the category increased by 9% (from 64 to 70). From 2016 to 2018, the number of visits fell in every category, with the largest decline occurring at the memorial sites (down 10%), and the smallest drop at national monuments (3%).