The Isles of Scilly have a greater density of ancient sites than anywhere else in the British Isles.
Bronze Age entrance graves at Bant's Carn, Innisidgen, Buzza Hill and Porth Hellick on St Mary's, Obadiah's Barrow on Gugh, Works Carn on Bryher and many others
Standing stones at Long Rock on St Mary's and the Old Man of Gugh
Submerged prehistoric huts and field boundaries off Samson, Tresco, Bryher, Teän ....
An Iron Age/Romano-British village at Halangy Down
A Bronze Age and Iron Age settlement re-used as a Romano-British shrine on Nornour
Early Christian chapels on St Helen's, Teän and St Martin's
Tudor and Civil War castles on St Mary's and Tresco
a unique sequence of defences dating from the late 16th century to the Second World War on the Garrison, St Mary's
Ruined post-mediaeval houses on Samson
A maze, windmills, kelp pits, gun batteries, lighthouses, smugglers' caches ..... and much more!