Two places that I would recommend as a must. They should be major tourist attractions but nobody around when I visited:
Tomb of Eagles.
Isbister, South Ronaldsay, in the Orkneys.
The grave dates to c 3000 BC and contains the remains of perhaps 300 people buried over a period of 800 years. Beside the human remains, the talons and bones of around 14 white-tailed sea eagles were found. The bird remains date to c 2450-2000 BC. Once common on Orkney, white-tailed sea eagles became extinct in Britain in 1918, but in recent years a few of these magnificent birds have been reintroduced; they feed on fish, water birds and carrion.
The Tomb of the Eagles was discovered by accident in 1958 by local farmer, Ronnie Simison. The site has now been excavated and Neolithic artefacts and stone tools dated.
The Italian Chapel
All that remains of the Italian Prisoner of War Camp 60, the famous Italian Chapel was created from two Nissen huts in 1943, using material from sunken blockships in Scapa Flow.
Wonderful testimony to the artistic skills of Domenico Chiocchetti and his fellow prisoners who came to Orkney to work on the construction of the Churchill Barriers. Beautifully designed chancel, altar, altar-rail and Holy water stoup. Painted glass windows depicting St Francis of Assisi and St Catherine of Siena. Restored 1960. A Preservation Committee is dedicated to the upkeep of the Chapel.