Acadia National Park in Maine is one of the country's top 10 most visited parks. Over 3.5 million visitors visited the park in 2018. From October 7 to March 6, Cadillac Mountains in Acadia National Park is the first spot in the United States to see the dawn. In 1918, the peak was named after Antoine Laumet de La Mothe, Sieur de Cadillac, a French explorer, and adventurer. Cadillac is an automobile business named after the great explorer. It is 49,075 acres in size and includes Cadillac Mountain, woods, lakes, and cobble beaches. The Rockefellers funded a carriage road system that makes it easier to get about.