Twickenham is a leafy suburban area of south west London, on the River Thames in the London Borough of Richmond upon Thames 10 miles southwest of the centre of London. It has a large town centre and is famous as being the home of rugby union, with hundreds of thousands of spectators visiting Twickenham Stadium, the world's largest rugby stadium, each year. The historic riverside area is famous for its network of 18th-century buildings and pleasure grounds, may of which survive intact. This area has three grand period mansions with public access: York House, Marble Hill and Strawberry Hill House. Another has been lost, that belonging to 18th-century aphoristic poet Alexander Pope. Among these is the Neo-Gothic prototype home of Horace Walpole which has given its name to a whole district, Strawberry Hill, and is linked with the oldest Roman Catholic university in the country, St Mary's University, Twickenham.