Ключевые слова: arched, arches, ashlar, bastion, battlement, blockhouse, bricks, buttress, castellation, castle, conical, crenelation, crenels, cultural, europe, european, fortification, fortress, historical, inverness, keep, loophole, masonry, merlins, old, parapit, scotland, stonework, structure, tourism, tower, travel, turret, windows,