Brooklands was a 4.43 km motor racing circuit and aerodrome built near Weybridge in Surrey, England, United Kingdom. It opened in 1907 and was the world's first purpose-built 'banked' motor racing circuit as well as one of Britain's first airfields, which also became Britain's largest aircraft manufacturing center by 1918, producing military aircraft such as the Wellington and civil airliners like the Viscount and VC-10.
Designed by Colonel H. C. L. Holden of the Royal Artillery for local landowner Hugh Locke King at a cost of over £150,000, the 4.425-km concrete track boasted two huge 30-degree banked sections 9.1 m (high, connected by two 30.5-m-wide straights. An additional "Finishing Straight" brought the total circuit length to 5.23 km.
The circuit hosted its last race in August 1939 and today part of it forms the Brooklands Museum, a major aviation and motoring museum, as well as a venue for vintage car, motorcycle and other transport-related events.
According to Wikipedia; brooklandsmuseum