Old John the upper floor, and is open to visitors on the park's guided walk programmes. In 2001, Bradgate Park Trust registered the design of the building as a trademark, and in 2018 told a local artist that she would have to pay them if she continued to sell her paintings of it. Adjacent to the tower is a toposcope installed in 1953. This was installed by the people of Newtown Linford from money raised at the 1953 'Pageant of Lady Jane Grey', performed to celebrate 400 years since she was proclaimed Queen of England. Old John Tower occupies the north-eastern end
Bradgate House (16th century) Groby manor, including Bradgate, was restored to Jane's Uncle, Lord John Grey of Pirgo. His great-grandson was made Earl of Stamford. Later earls acquired estates in Enville, Staffordshire, and Dunham Massey, Cheshire. Sometime after 1739 they moved out of Bradgate, which began a long decline. The spectacular ruins of the house are still visible at the centre of the park. The house was approximately long, featuring a main hall measuring . As well as considerable remains of walls and fireplaces, it has four truncated towers and the chapel is still intact, containing a tomb effigy to Henry Grey, 1st Earl