Asgard, later New York City area, later Defenders Mansion, Colorado._NL_TR
New York World's Fair Comics #1 - Superman, Zatara, Butch the Pup, The Sandman, Gingersnap : The Above Favorites and many Others! Also Interesting and Unusual Features, Stories and Pictures of the Fair : Mystery Thrills Adventure : 96 Pages in Full Color!_NL_TR