What is this building, where is it located, and what was its' original name?

'Opened in 1911 as the Isaac Delgado Museum of Art, the New Orleans Museum of Art has grown into an invaluable cultural, recreational and educational resource which serves the City of New Orleans and the Gulf South. Ranked in the top 25 percent of the nation's 140 largest and most important art museums'
From http://www.noma.org/html_docs/aboutn.html

The Museum is located at One Collins C. Diboll Circle in City Park. Collins C. Diboll was a noted architect and philanthropist whose firm designed many local buildings in N.O. built in the early 20th century. His foundation is one of the top 25 foundations in Louisiana. More about Diboll can be found at http://www.stphilipneri.org/teacher/cultcha/content.php?type=1&id=2111