13. LEGO Sets

Early LEGO sets from the 1950s and 1960s, as well as rare sets and minifigures, can be really valuable.

Some of the most valuable LEGO sets are the Mr. Gold, being sold for around $4,000 to $8,000, depending on its condition; the 10123 Cloud City, Star Wars themed, being sold for around $3,000 to $8,000; The 810-4 Town Plan, with its value varying from $2,000 to $3,000.