The National Portrait Gallery in London is to close for three years for redevelopment. Some of the works housed in the the gallery will go on tour before the reopening in 2023. Though it was widely known that redevelopment of the 123-year-old building was planned, the news of the complete closure from 29th June 2020 until Spring 2023 came as a surprise when it was announced last week. The redevelopment, which will cost £35.5m, will...