Westgate Gardens has 4.5 hectares (11 acres) of public gardens set around Tower House, a medieval bastion constructed to defend Canterbury's city wall. The garden features two war memorials and a wide variety of planting. Of special interest is a 200 year old 25 feet (7.6 metre) wide Oriental Plane (Platanus orientalis) which is believed to have 'absorbed' a circular iron seat which used to stand around it.