It is the collection point for all lost and unloved things.
The intergalactic dumping grounds of Sakaar were filmed at a quarry (Oxenford Quarry) in Queensland, Australia.
MAP
[googlemaps https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d5236.408980187251!2d153.2915473090359!3d-27.908893459753514!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x6b9116d5af77ef15%3A0xca1bea7efec085b1!2sOxenford%20Quarry%2C%20Oxenford%20QLD%204210%2C%20Australia!5e1!3m2!1sen!2sus!4v1615915785486!5m2!1sen!2sus&w=800&h=600](Thor: Ragnarok, 2017)