Cattybrook Brickpit is a 2.2-hectare (5.4-acre) geological Site of Special Scientific Interest near the village of Almondsbury, South Gloucestershire, notified in 1989. It began as a clay pit and brickworks.

Maidenhead Railway Bridge, also known as Maidenhead Viaduct and The Sounding Arch, carries the Great Western Main Line (GWML) over the River Thames between Maidenhead, Berkshire and Taplow, Buckinghamshire, England. It is a single structure of two tall wide red brick arches buttressed by two over-land smaller arches. It crosses the river on the Maidenhead-Bray Reach which is between Boulter's Lock and Bray Lock and is near-centrally rooted in the downstream end of a very small island.