United States Virgin Islands National Park on St. John Island

San Juan National Historic Site and El Yungue National Forest on Puerto Rico.

Coronado National Forest in Arizona.

Indiana Dunes National Lakeshore and Indiana Dunes State Park.

Coconino National Forest.   Sedona, Arizona.

Everglades National Park

Effigy Mounds, Iowa.

Gettysburg National Military Park, Pennsylvania.

Joshua Tree National Park, California.

National Mall, Washington D.C.

Olympic National Park, Washington State.

Pinnacles National Park, California.

Shawnee National Forest, Illinois.

Pullman National Monument, Illinois.

Death Valley National Park

Glen Canyon National Recreation Area. Page, Arizona.

Chiricahua National Monument Wilderness.  Near Portal, Arizona.

Yellowstone National Park

Sleeping Bear Dunes National Lakeshore, Michigan.

Hoover Dam

Rainer National Park.  Washington State.

Superior National Forest, Minnesota

Yosemite National Park, California.

United States Botanic Garden.  Washington, D.C.

Jefferson National Expansion Memorial

Hoosier National Forest

Independence National Historical Park, Pennsylvania