Helmsley Castle 
“Unlock 900 years of life at Helmsley Castle, an essential site for any visitor to the market town of Helmsley in the North York Moors National Park.…” – official site
Ease by public transport:
Unknown
“Unlock 900 years of life at Helmsley Castle, an essential site for any visitor to the market town of Helmsley in the North York Moors National Park.…” – official site
Ease by public transport:
Unknown