In 1962, the Topps Mars Attacks set hit the market. The amazing martian artwork captured the imagination of children, making it one of the most popular non-sport sets of all-time. This 55-card set rates EX+ overall and is consistently crease-free. It's a terrific played-with but not abused set. Highlights include The Invasion Begins (#1 VG-EX) and Checklist (#55 VG-EX).