Brig o' Doon

The words auld and brig are Scots for "old" and "bridge", hence the auld Brig o' Doon is "the old Bridge of Doon". The bridge is thought to have been built in the early fifteenth century. According to John R. Hume, the bridge was built by James Kennedy, who died in 1465, but the first recorded mention was in 1512. The bridge was described as "ruinous" in 1593.

The bridge is located near Alloway and crosses the River Doon. It is a single arched bridge, with a steeply humped span of 72 ft and a rise of . It has been repaired many times, most recently in 1978, and many parts of the stonework do not match. The old bridge was sold to the builders of the new bridge as a quarry for material, but money was raised to purchase the old bridge back, and the trustees of the new bridge decided to quarry somewhere else. .]] The line of the cobbles in the roadway is cranked, due to the belief that this pattern would stop witches from crossing.