Ever since the first Harry Potter novel was released almost 15 years ago, children and adults alike have fantasised about visiting its famous boarding school for wizards and witches.

This extraordinary model of the Hogwarts School of Witchcraft and Wizardry is due to go on display for the first time. The model was built for the first film – Harry Potter and the Philosopher’s Stone – and has been used for exterior shots in every film since.When all the time spent by 86 artists and crew members is added up, it took an incredible 74 years to build. It measures 50 feet across and comes with more than 2,500 fiber optic lights that double up as lanterns. The castle is based on Durham Cathedral and Alnwick Castle and has remained fresh in every Hotter Potter fan. It is no wonder then that many people have wished to visit the castle in real life. While the castle may not exist in real size, one could at least visit the real model at the Leavesden Studios, near Watford.