Pokémon and sports cards may be outpacing the stock market on paper, but while some collectors are cashing in—others are going broke.

Chainz takes us on a tour of some of the most valuable trading cards in the world in this episode of Most Expensivest. AA Mint Cards showcases cards that are worth tens of thousands of dollars. From ...

Simon Cowell, renowned music executive, television personality, and former judge on American Idol, spends a small fortune on Pokemon Cards.