Are you a National Parks nut? Or maybe just a fan of fantastic landscape photography? Either way, you should consider shelling out five bucks for Fotopedia’s National Parks app for iPad and iPhone. It’s a collection of 3000 amazing images by photographer Quang-Tuan Luong made over the course of 10 years shooting in each of the United States’ National Parks. More than just pretty pictures though, photographers can use the app as a tool to help plan out photo treks and vantage points for their own shots. Check it out at Fotopedia.com or download it from the Apple app store.