Demi-hexagonal interval tower on York city walls, probably of 14th or early 15th century date.

Semi-circular interval tower on York city walls, probably of the period 1266-1318.

Modern semi-circular interval tower on York city walls, built in 1957 to replace a a semi-circular interval tower, probably of the period 1266-1318, which collapsed in 1957. It was rebuilt above the footings reusing the former tower materials.

Semi-circular interval tower on York city walls, probably of the period 1266-1318. The upper part was restored 1888-9, including the `pepper-pot' turrets.

Site of interval tower on the York City walls, not depicted on plans after 1822. It is variously shown as of round or rectangular form dating it to the period 1266-1350. No trace has been found of the earlier medieval gate, which was probably situat...

Site of semi-circular interval tower on the York City walls, removed shortly after 1822. Probably dates to 1266-1318.

The Harlot Hill Tower. A semi-circular interval tower of 1266-1318 set at a slight bend in the York Mediaeval city wall. The bartizans in the upper part were added in 1877-8.

Rectangular interval tower on the York Mediaeval City wall. This does not appear on any plan before 1822, but is probably late Mediaeval.

Layerthorpe Tower. It set on an angle with straight sides to the west and north and a curved face on the east and southeast. It is unusual in being without a solid base, rather veing supported on two buttresses, and between them to the east, a pointe...

Interval tower between Red Tower and Walmgate Bar. Rectangular with chamfered plinths, early 14th century.