Enter the National Physical Laboratory campus via the Queen’s Road, Teddington entrance. Take the second exit at the roundabout left onto Bushy Road (signed NPL Sports Club). At the T-junction, turn right into Glazebrook Road. Bushy House is the large 18th-century redbrick building. Enter via the main door (white columns) or smaller door to the left. Turn left – the Scientific Museum is at the end of the corridor.