Doctor Who's Tardis is perched on the inner east gatehouse tower
Caerphilly Castle is playing host to a futuristic visitor over the Christmas period.
After travelling through time and space Doctor Who's Tardis has landed at Wales' largest moated medieval castle.
The blue police box which is located on top of the Inner East Gatehouse tower will be lit up during the night and will stay there until the New Year.
The castle was used to film some scenes for the two part Christmas episode of Doctor Who, entitled The End of Time.
The Doctor Who production team have constructed a giant platform to display the illuminated Tardis.
The castle was used to film some scenes for the Christmas episodes
Visitors to the Medieval Christmas fayre at the castle on 12 and 13 December will be able to see the unusual spectacle as they do their Christmas shopping at the stalls around the castle and enjoy the festive entertainment supplied by jugglers, jesters and stilt walkers.
Tardis stands for Time and Relative Dimension in Space - the machine has been the chosen mode of transport for all of the ten Doctors on their intergalactic adventures.
John Wallis from Cadw, the organisation responsible for historic monuments around Wales, was delighted to have the extra attraction.
"I'm delighted that the Tardis is in place in time for Caerphilly's Medieval Christmas fayre this weekend," he said.
"As well as enjoying a variety of events and activities here at the Castle, visitors can now also witness this world-famous blue box at the Inner East Gatehouse tower."
The End of Time is the final journey for the tenth Doctor, played by David Tennant, as he prepares to do battle with his nemesis, the Master.
Doctor Who - The End of Time Part One is on BBC One Wales at 1800 GMT on Christmas Day with Part Two is on BBC One Wales at 1840 GMT on New Years Day
Have you taken any great photos of the Tardis at Caerphilly Castle? Send them to firstname.lastname@example.org