A portico is a porch leading to the entrance of a building, or extended as a colonnade, with a roof structure over a walkway, supported by columns or enclosed by walls. This idea was widely used in ancient Greece and has influenced many cultures, including Western cultures. Classical architecture is derived from the architecture of ancient Greece and ancient Rome. Although classical styles of architecture can vary greatly, they can, in general, all be said to draw on a common vocabulary of decorative and constructive elements Handmade pillars and columns in natural stone Ideal to beautify your driveway or patio.