Some of America’s stunning destinations are facing imminent changes. Here are 5 places you may want to check out soon, before it’s too late. 1. Redwood National Park. Home to the tallest trees on earth, this park is at risk due to human land development and burl poaching. 2. Glacier National Park. Once home to more than 150 glaciers, the park now has fewer than 25, a number that will likely continue to decrease. 3. Mesa Verde National Park. This park protecting almost 5,000 archaeological sites, including cliff dwellings of the Pueblos, is facing the consequences of wildfires. 4. Yosemite National Park. The park is one of the most popular in the country. However, the droughts that have ravaged California are taking a toll on the park's wildlife. 5. Kauai. Hawaii's oldest geological island is being threatened by flooding, hurricanes, tsunamis, and coastal erosion that result from rising sea levels.