The sand found in the mines along Tunnel Road is of a very high quality, as is the sand around Reigate, and has been excavated through 1820 to 1900.  Since the mining ceased the tunnels have seen a number of uses and are currently the home for the local rifle club.

Situated in the grounds of Reigate Castle, Barons' cave is steeped in history and legend; as it goes the rebellious barons met there to discuss the finer details of the Magna Carta before they met the King to sign it.

Purchased in 1896, the Horton Estate was converted into a cluster of four insane asylums and one epileptic colony to house up to ten thousand patients.  It was the only cluster of hospitals of its type in the country and is under going conversion to affordable housing at the present time.

The Triple Expansion Steam Engines installed within the Water Works at Kempton were the largest of their kind to be installed in the country, supplying London with 19 million Gallons of water a day.  Their operation ceased in 1980 and the site has since been restored, with one of the engines being brought back to working order and it is now considered a national monument.

Cane Hill Mental Hospital was the third county asylum to be built in Surrey, after Springfield and Brookwood Asylums.  It opened in 1883 and eventually closed in 1992, with only a small secure unit remaining; it has since suffered a number of arson attack, vandalism and natural decay.  It is soon to be demolished in line with the regeneration of Coulson. 

Foxenden Quarry Deep Shelter was built in 1941 for the people of Guildford and was designed to hold 1000 people comfortably during bombing raids in World War Two. It is in fantastic condition and is opened by the council a few times a year for ticketed tours by the public.