A new book, aimed at science and technology geeks, will help funding for Bletchley Park.
Buying "The Geek Atlas: 128 Places Where Science & Technology Come Alive" by John Graham-Cumming, will see a 50p donation for each copy sold to the Bletchley Park Trust Fund.
As you might guess from the title, the unique travellers' guide covers 128 (!) interesting destinations around the globe where major breakthroughs in science, mathematics, or technology occurred.
The destinations covered in The Geek Atlas include Bletchley Park, as well as the Alan Turing Memorial in Manchester, the Horn Antenna in New Jersey, where the Big Bang theory was confirmed and the Trinity Test Site in New Mexico, where the first atomic bomb was exploded
The book, published by O'Reilly Media, is available to buy now for £22.99.