The Stonehenge monument in Wiltshire is celebrating its 100th year of public ownership by erecting a life-size, inflatable version of the site.
The world-renowned monument was previously owned by a local barrister, Cecil Chubb who bought a plot of land, which included the monument, at auction in 1915.
Three years later, Mr and Mrs Chubb decided to donate the land to the government, handing it over on 26th October 1918.
Since then, the public has worked to restored and preserved the site for future generations.
Now the henge is a major tourist attraction, as well as hosting the Summer Solstice and Winter Solstice every year.
Over the weekend, artist Jeremy Deller is bringing the party with his bouncy castle version of the monument to the site for the very first time.
Our reporter, Robert Murphey, went along to the site in the first of our reports.
The celebrations are the culmination of months of work by English Heritage, which manages Stonehenge.
In part two of our report, Robert Murphey has been looking at what Stonehenge means to the people who visit.
Large crowds braved the cold on Friday to help celebrate the monument's centenary events.
Activities included a full-size bouncy castle replica of Stonehenge to entertain younger history enthusiasts.
A 6ft wide cake replica of Stonehenge - divided up into 2,300 slices - was cut by 100 year old Reenie Boyce who lives in Durrington in Sussex.