You should pull up and remove weeds by hand as and when they appear. If it is a regular problem, you might need to reseal the paving. In extreme cases, the sub layer itself may need to be re-laid. You can use weed killer, however some paving can be discoloured by stronger weed killers.
Brora
Brora is a town in the eastern of Sutherland, in the Highland area of Scotland. Brora is a small commercial town, having at one-time a coal pit, boat building, salt pans, fish curing, lemonade factory, the brand-new Clynelish Distillery (as well as the old Clynelish distillery which is now called the Brora distillery, woollen mill, bricks and a rock quarry. The white sandstone in the Clynelish quarry comes from the Brora Development, of the Callovian and also Oxfordian stages (previously Middle Oolite) of the Mid-Late Jurassic. Stone from the quarry was made use of in the building of London Bridge, Liverpool Cathedral as well as Dunrobin Castle. When in operation, the coalmine was one of the most northerly coalmine in the UK. Brora was the starting point in the north of Scotland to have electricity thanks to its wool market. This distinction triggered the neighborhood nickname of "Electric City" at the time. Brora also houses a baronial style clock tower which is a war memorial.