United Nations
Unesco: Early Christian Monuments of Ravenna
This World Heritage website features Ravenna in Italy, which was the center of the Roman Empire at one point, and later of the Byzantine Empire in Italy. Presented on this website are eight Christian buildings, and their mosaics, from...
Columbia University
Columbia University: Real Virtual: Representing Architectural Time and Space
An extensive collection of resources designed to aid the teaching of architectural history. An introduction to the period of architecture accompanies images. Viewers can manipulate the images to achieve a panoramic view or close-up of...
Khan Academy
Khan Academy: Mausoleum of Galla Placidia (Quiz)
How much do you know about the Mausoleum of Galla Placidia? Find out by answering this four-question multiple-choice and true/false quiz. Check each answer before moving to the next question. Hints are available for each question.