Spider-Man Comic Books
Spider-Man first appeared in the anthology comic book Amazing Fantasy #15 in August 1962. If you manage to get your hands on a copy, you'll strike some serious gold. One copy recently sold for just under $48,000 on eBay while the original issue was sold in a 2011 auction for—drum roll please—$1.1 million. Someone's Spidey-senses must have been tingling.