How do rocks move across Death Valley on their own? Where can you see the footprints of Ice Age hunters? And which national park once trained secret spies during World War II?

From Cameron Sabin, creator of YouTube's National Park Diaries, comes National Parkopedia'a collection of the most surprising stories, strange sights, hidden histories, and unforgettable characters found in America's national parks, state parks, forests, monuments, and other protected places.

Journey through all 50 states to uncover:

- Strange geological wonders and natural mysteries
- Hidden histories and forgotten stories
- Secret structures and unexpected discoveries
- Historic figures and cultural landmarks
- Remarkable wildlife and unique ecosystems
- Hundreds of surprising facts and 'wait...really?' moments

Whether you're a park enthusiast, a trivia lover, an armchair explorer, or planning your next adventure, National Parkopedia is your guide to the fascinating stories hiding in America's amazing protected places.