British Museum chairman George Osborne said he expects around one million people to come to London to see the Bayeux Tapestry.
The former British politician said there were five applicants for every ticket when the first batch of 100,000 went on sale.
He told The Times of London the historic embroidery, which details the Norman conquest of England in 1066, had exceeded his "wildest expectations".
Recalling his time as the UK's chief finance minister, he said: "I remember when I was chancellor of the exchequer being taken to see the gold reserves underneath the Bank of England and being blown away. The Bayeux Tapestry exceeded my expectations in the same way."
The show, which will run from September 10 to July 11, has been controversial in France with fears raised about potential damage caused by moving it to the UK, but a French official told journalists it had suffered "no visible alteration" during the journey.