The days of old definitely have a thing or two going for them in regards to architectural details. Back in the premodern era, homes were not the focus of the homeowners decorative attention, generally speaking. It was the church and community buildings that got the creative and ornamental focus.
One such architectural detail that was introduced in Stone Age for a practical purpose (to help support buidlings) was a corbel. A corbel is piece of masonry that shoots out of wall and typically bears weight. They are used on the exterior and interior of buildings and were generally made of stone.
Corbels provide excellent sculptural opportunities as seen in these examples from Westminster Abbey.
Images by Julia Manzerova.