Gerhard Richter at the Tate Modern (till 8 January)
Rem Koolhaas' architecture practise at the Barbican Art Gallery with OMA/Progress (till 19 February) - the first major exhibition by the Office of Metropolitan Architecture in the UK.
Frieze Contemporary Art Fair (13.-16. October)
Cheese & Wine Festival (14.-16. October) at the Southbank Centre Square, behind the Royal Festival Hall.
and much, much more ...... Enjoy your weekend!