The Antonine Wall was built by the Romans across what is now known as the Central Belt of modern-day Scotland. The wall was 63 kilometres (39 miles), was about 3 metres (10 feet) high and 5 metres (16 feet) wide. Construction began in AD 142 and took 12 years to complete.
The first visible remains of the Antonine Wall, when traveling from the western end, is at Duntocher. Located in the local park are the remains of an earlier fort which has been marked with hedges, a Roman bath-house was found near the war memorial and a small section of the rampart’s stone base is visible within a railed enclosure
Links: www.antoninewall.org, en.wikipedia.org