Fantastic Adventures was an extremely successful and influential pulp magazine that was published from 1939 to 1953.  They published a combination of fantasy, horror, and adventure, all distinguished by a more light-hearted approach than some of the other pulp magazines of the era.

Even better, Fantastic Adventures was one of the few pulp magazines to give proper credit to its cover artists:

by Harold W. McCauley

by Ed Valigursky

by Raymond Naylor

by Robert Gibson Jones

by Stockton Mulford

by Harold W. McCauley

by Robert Gibson Jones

by Rod Ruth

by Walter Parke

by Arnold Kohn