Do you have treasures hidden in your house? On Saturday, April 15, 2023, the digital auction house, Catawiki, is setting up its first "House of Catawiki" event in the 3537 mansion in Paris. In addition to discovering the exhibition of about sixty rare and unusual pieces available for auction via a QR Code, visitors will be able to have their own objects appraised for free by professionals and take advantage of personalized sales advice.