At night the sculptures are illuminated by different colored lights. Lights have illuminated the main lobby nightly. After dark, colored lamps illuminated the gardens. The ignition ring is now illuminated with green lighting. The lunar terminator is the boundary between the illuminated and darkened hemispheres. At night, the sculpture is illuminated by floodlights. As darkness fell, police searchlights illuminated the buildings. The tower is illuminated using LEDs. The cave is fully electrically illuminated. At night, the pavilion was illuminated by floodlights. Typically, a sample is illuminated with a laser beam. At the same time (in 1892) the square was illuminated by electric lanterns. The spheres become gradually more illuminated and celestial. Locations were often illuminated outside at night time, with blue and green colours. While under construction, the tower was specially illuminated on several occasions.