7. Wrangell–St. Elias National Park and Preserve, Alaska
Wrangell–St. Elias is the largest national park in the United States, covering over 13 million acres of wild terrain. Mountains, glaciers, forests, and rivers stretch for miles in every direction. It is a paradise for outdoor explorers, from experienced backcountry hikers to casual visitors looking for scenic drives. The road to the tiny towns of McCarthy and Kennecott is a true Alaskan adventure, and the historic copper mill in Kennecott is a must-see. Wildlife is abundant, with moose, caribou, bears, and eagles all calling the area home. There are also guided glacier hikes and flightseeing tours for those looking to see the park from a new perspective. Because the park is so massive, it rarely feels crowded, even during peak season. The beauty is jaw-dropping and the quiet is unmatched. And like a few others on this list, the entrance is totally free.