We've come across some pretty incredible auctions recently.
For example, there were the second-hand trainers that sold for a whopping £14,800 thanks to their rather famous previous owner.
Not to mention the unique designer handbag that was picked up for a staggering £294,550 at auction in Hong Kong.
But they're not the only mind-blowing auctions around, as this video shows.
Take a look to see which monarch's bloomers went under the hammer and find out how much someone paid for a piece of old wedding cake!