Dinosaur skull and robot up for auction
23 August 2013 Last updated at 06:55 BST
A dinosaur skull and a glass model of Charlie Chaplin are just some of the items going under the hammer at Christie's auction house.
The Out of the Ordinary sale features a collection of weird and wonderful items ranging from a couple of hundred pounds to hundreds of thousands.
A public exhibition has been curated ahead of the sale in early September. Sophie van Brugen reports.