Explore the most expensive things in the world, from luxury yachts to rare art, and see the jaw-dropping price tags only the ...

It's time to dig up those Beanie Babies and dusty old Pokémon cards because they could make you a pretty penny.

The world’s most expensive substances command their prices for very different reasons. Some, like rare gemstones, are valuable because nature produces them in such limited quantities. Others, such as ...