Auction house Sotheby's and Carpenters Workshop Gallery could not have picked a more unusual setting in Sudeley Castle for their latest selling exhibition by a rather intriguing roll-call of artists and designers.

Set in the rolling hills of the English Cotswolds, the 10th-century pile has ensconced everyone from Katherine Parr (Henry VIII's last wife) to Charles I, and since its restoration in the late 19th-century, its manicured gardens have been a favourite of nature enthusiasts and now, it seems, art galleries.

Encouraged by the success of its art-in-the-garden tour de force 'NeverEverLand' show at last year's Design Miami/Basel, Carpenters Workshop Gallery have sprinkled Sudeley's gardens with 25 once-off or limited edition pieces by the likes of Marc Quinn, Marcel Wanders and Pablo Reinoso.

With prices ranging from £10,000 to £280,000, the pieces are enormous (literally and figuratively) flights of fantasy and creativity. Our favourites include Reinoso's 'Huge Sudeley Bench' - a sinuous strip of metal that unfurls like Cinderella's pumpkin coach in mid-transformation; Atelier Van Lieshout's 'Wellness Skull' - an enormous white skull whose interior hides a sauna for five; and Studio Job's 'Pouring Jug' - a fantastical coppery jug that appears to float in mid-air while a molten black stream pours from its spout.

Amidst Sudeley's splendid ruins, it's truly a Mad Hatter moment, but one we can't help but think deserves a round of applause for sheer chutzpah and imagination.