This observation building served as the main control centreĀ for the Lyness Naval Base Air Raid Precaution System. There appears to be the remains of a periscope cupola above the (much enlarged) doorway to the front of the building.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Passive Defense HQ, Lyness, Hoy.
- Top of the ladder
- Top floor of tower
- Inside the Tower
- View from the tower
- View from the tower
- View from the tower – Lyness oil tank visible
- View from the tower
- Structure on roof
- Structure on roof