During the tour, one of the telescopes that I had a chance to see was the Ma Math Pierce solar telescope. The telescope is not an ordinary telescope that we know of as a tunnel carved into the mountain peak and a gigantic building was built to house the telescope and its operation instruments. The schematic shows the cross sectional view of the telescope building on top of a mountain makes your jaw drops. The telescope is known as the world's largest optical telescope with diameter of 1.6 meter and it was built in 1962. As its name, the telescope is designed to watch sun spots which directly affect upper sky down the earth for our satellite communications.