Annan is a town and former royal burgh in Dumfries and Galloway, south-west Scotland. Historically part of Dumfriesshire, its public buildings include Annan Academy, of which the writer Thomas Carlyle was a pupil, and a Georgian building now known as "Bridge House". Annan also features a Historic Resources Centre. In Port Street, some of the windows remain blocked up to avoid paying the window tax.

Chapelcross nuclear power station is a former Magnox nuclear power station undergoing decommissioning. It is located in Annan in Dumfries and Galloway in southwest Scotland, and was in operation from 1959 to 2004. It was the sister plant to the Calder Hall nuclear power station plant in Cumbria, England; both were commissioned and originally operated by the United Kingdom Atomic Energy Authority. The primary purpose of both plants was to produce weapons-grade plutonium for the UK's nuclear weapons programme, but they also generated electrical power for the National Grid. Later in the reactors' lifecycle, as the UK slowed the development of the nuclear deterrent as the cold war came to a close, power production became the primary goal of reactor operation.