The Royal Park offers great views of London and the city; As well as housing the Royal Observatory which includes a museum of astronomical and navigational tools, part of the National Maritime Museum.
This beautiful 19thC industrial building is situated in Markfield Park just around the corner from my studio. Once a sewage treatment works serving the whole of Tottenham and now a museum. The fully restored Victorian pump engine is only open to the public on the second Sunday of every month but the outside of the building and surrounding park is a worth a visit regardless.
Great little cinema, hidden away in the basement of Aubin & Wills, London. Not exactly a fan of the brand but the cinema is pretty awesome. They show a variety of interesting films and have probably the comfiest seats including armchairs and sofas. Bit dear, but one of the best cinemas I've come across.