This stone sculpture of the Olympic Games' five-ringed symbol, commonly referred to as the Olympic rings, was commissioned to celebrate the London 2012 Summer Olympics and Paralympics for which the Weymouth and Portland National Sailing Academy at Osprey Quay hosted the sailing events.
For the duration of the Games, the sculpture, made of Portland stone, stood outside Weymouth's railway station to serve as a welcome to visitors during the events. It was later relocated to New Ground at Portland, where it has since become a popular attraction. The site at New Ground was selected as it was a popular viewpoint and an accessible public area. The site also overlooks the sailing academy and Portland Harbour where the sailing events took place.
The sculpture is 2.5 metres tall and 3.8 metres long, and weighs 9 tonnes.
Link The Encyclopedia (sic) of Portland History