Fort McHenry : Our Flag Was Still There by Joanne Mattern*

Before my boys visited Fort McHenry with their grandparents, we read most of this book to build some schema. 
This book shares about the person for whom the fort is named, its importance during the War of 1812, information about Francis Scott Key and his poem, how the poem was transformed into a song and eventually our national anthem and the purposes the fort served after the War of 1812.
Great photographs, maps and artwork.
*Highly recommend.
-Borrowed from the library.
More in this series: Ellis Island, The Gateway Arch, The Grand Canyon, Historic Williamsburg, The Liberty Bell, Martin Luther King Jr. Memorial, Mount Rushmore, Statue of Liberty and Yellowstone National Park.