| Blockhouse |
Block-shaped stone fort. |
| Broch |
A circular drystone tower, used
as a fortified dwelling in the pre-Christian period. |
| Cairn |
Mound of stones, usually
covering a burial chamber. |
| Cist |
A single grave, made of stone
slabs. |
| Cross-slab |
Rectangular slab bearing a
cross. |
| Cup-mark |
Cup shaped hollow carved into a
stone. |
| Cup-and-ring mark |
Cup shaped hollow carved into a
stone encircled by a carved ring. |
| Henge |
Stone circle with surrounding
earthworks. |
| Peel tower |
Fortified tower-house. |
| Quern |
A stone for grinding cereal or
seeds. |
| Runes |
Angular script carved into stone
or wood. |
| Wheelhouse |
Iron Age house with partition
walls that project inwards (like the spokes of a wheel). |
.Hill Forts 
.Early
Christian 
.Roman 
.Standing Stones 
.Brochs &
Duns 
.Tombs 
.Pictish