 The general impression given by Romanesque architecture, in both ecclesiastical and secular buildings, is one of massive solidity and strength.In contrast with both the preceding Roman and later Gothic architecture, in which the load-bearing structural members are, or appear to be, columns, pilasters and arches, Romanesque architecture, in common with Byzantine architecture, relies upon its walls, or sections of walls called piers.Romanesque architecture is often divided into two periods known as the "First Romanesque" style and the "Romanesque" style.