Where: Stirlingshire, Scotland

Prices: £4 adults and £2 children

As well as providing much of the backdrop to Monty Python's classic 'The Holy Grail', Doune Castle also houses an impressive collection of classic cars. Among them are a Hispano Suiza, Bentley, Aston Martin and Rolls-Royce.

The castle is awash with activities during the summer months including remote-controlled car rallies and hilltop races.