Hadrian's Wall

Went to the wall for the first time ever.

Hadrian's Wall was a defensive fortification in Roman Britain. Begun in AD 122, during the rule of emperor Hadrian, it was the first of two fortifications built across Great Britain. The wall was the most heavily fortified border in the Empire. In addition to its role as a military fortification, it is thought that many of the gates through the wall would have served as customs posts to allow trade and levy taxation.

Sneakily English Heritage, who look after part of the wall have now put a shop on the entrance at Housesteads, which gives the impression that you have to pay for access to the wall which you don't (only for the fort).