London has wonderful art in its museums and galleries but the art and sculpture in public spaces is a constant delight as we walk around. My favourite site is the 4th Plinth in Trafalgar Square which has extremely varied pieces which have changed every couple of years since 1999. After sitting empty for 150 years what is known as the Fourth Plinth began hosting some temporary commissions and this has built into a stunning series of works, often provoking debate and controversy but always bringing something new to the square.
