alcove antenna tower barbican belfry bell tower belvedere campanile colossus column cupola derrick dewal dome fane fire tower garden gazebo girja kiack lantern lighthouse martello martello tower masjid mast minaret monument mosque obelisk observation tower pantheon pilaster pillar pinnacle pole pylon pyramid shaft shul skyscraper spire standpipe steeple stupa synagogue tabernacle television mast temple tope tour tower turret water tower windmill tower