Esther's photos with the keyword: oculus

The State Library of Victoria, in Melbourne Australia opened in 1856. "The landmark Domed Reading Room, which opened in 1913 and was designed by Norman G. Peebles. Its octagonal space was designed to hold over a million books and up to 500 readers. It is 34.75 m in both diameter and height, and its oculus is nearly 5 m wide. The dome was the largest of its type in the world on completion. en.wikipedia.org/wiki/State_Library_of_Victoria AIMG_5988

The Pantheon in Rome was commissioned by Marcus Agrippa in 27 BC as a temple to all the gods of Ancient Rome, and rebuilt by Emperor Hadrian in about 126 AD. The building is circular in shape with a portico which consists of three rows of gigantic granite Corinthian columns . The rotunda is under a concrete dome, that has a central opening (oculus) to the sky. Even though it was built nearly two thousand years ago, the Pantheon's dome remains the world's largest unreinforced concrete dome. The dome's thickness varies from 21 feet at the base of the dome to 13.9 feet at the oculus. AIMG_2566