This free prize draw has now closed.
The prize
The winner and up to five guests will explore our Dinosaurs gallery before it opens to the public, then go behind the scenes with one of the Museum's palaeontologists to see our research collection, where they'll be able to handle fossils and see dinosaur bones that have never been on public display.
The winner and three runners-up will also receive a copy of the Museum's recent book Dinosaurs: How They Lived and Evolved.
Entrants needed to be aged 18 or over. The additional guests could be from age four and up. Other terms and conditions applied.
The closing date for entries was 5 July 2018 at 16.00 BST.
The winner
The winner will be notified by phone. The name of the winner will be published here on 3 August 2018.
Discover dinosaurs
Find out what Museum scientists are revealing about how dinosaurs looked, lived and behaved.