The structure which faces The Presbytere was declared a National Historic Landmark in what year?
The Presbytere: The Presbytère is an architecturally important building in the French Quarter of New Orleans, Louisiana. Jackson Square (New Orleans):  It was declared a National Historic Landmark in 1960, for its central role in the city's history, and as the site where in 1803 Louisiana was made United States territory pursuant to the Louisiana Purchase.
1960