35. Dinosaur National Monument
> Average annual visitors: 266,640
> Location: Colorado
> Established: 10/4/1915
> Purpose: Protects fossils of Jurassic period dinosaurs.
34. Fort Caroline National Memorial
> Average annual visitors: 274,567
> Location: Florida
> Established: 9/21/1950
> Purpose: Memorializes two centuries of colonial rivalry between French and Spanish.
33. LBJ Memorial Grove on the Potomac
> Average annual visitors: 278,430
> Location: Virginia
> Established: 9/27/1974
> Purpose: Honors America’s 36th president.
32. Flight 93 National Memorial
> Average annual visitors: 294,108
> Location: Pennsylvania
> Established: 12:00:00 AM
> Purpose: Memorializes victims of the fourth plane hijacked during the attacks of September 11, 2001.
31. Little Bighorn Battlefield National Monument
> Average annual visitors: 307,119
> Location: Montana
> Established: 7/1/1940
> Purpose: Preserves site of Custer’s Last Stand.