Even for billionaires, some purchases are splurges. From skyscraper houses to priceless works of art, the world's elite buy ridiculously expensive things to fuel their passions, showcase their wealth or spend the money just because they can. Whether it's the most expensive thing they own or just the most exotic, the splurges of the world's wealthiest are always interesting.
Click through to see some of the world's richest billionaires -- and their amazing toys.
(By Andrew Lisa)