Harrows Scar Milecastle and Wall - Hadrian's Wall 
“A mile-long section of the Wall, rebuilt in stone later in Hadrian's reign. It is linked to Birdoswald Roman Fort.…” – official site
Ease by public transport:
Unknown
“A mile-long section of the Wall, rebuilt in stone later in Hadrian's reign. It is linked to Birdoswald Roman Fort.…” – official site
Ease by public transport:
Unknown