Best Lesser-Known US National Parks, According to Frequent Travelers

While Yellowstone and Yosemite get all the attention, these lesser-known parks offer equally stunning experiences:
- Dry Tortugas National Park, Florida: A remote island paradise with crystal-clear waters and a historic fort.
- North Cascades National Park, Washington: Alpine landscapes, glaciers, and diverse ecosystems without the crowds.
- Great Basin National Park, Nevada: Home to ancient bristlecone pines and stellar stargazing opportunities.
- Congaree National Park, South Carolina: A unique floodplain ecosystem with some of the tallest trees in the Eastern U.S.
- Guadalupe Mountains National Park, Texas: Rugged wilderness, diverse wildlife, and the highest peak in Texas.