![Pedestrians walk past the entrance to the National Portrait Gallery in central London on August 24, 2018. (Photo by Daniel LEAL-OLIVAS / AFP)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PAZN4T6OVECO4PRHWYXQP6UXAQ.jpg?smart=true&auth=83b6141f4ca3bbed1d7bd6b20a2b2bd5a0296c3da031ebbe1ecebd84d04ae712&width=400&height=225)
Pedestrians walk past the entrance to the National Portrait Gallery in central London. AFP
Pedestrians walk past the entrance to the National Portrait Gallery in central London. AFP
London's National Portrait Gallery to close for three years
It is part of a multi-million pound redevelopment project to transform the gallery