onion dome
The onion dome
A feature shaped like a bulb characteristic of Russian and Byzantine church architecture is called an onion dome. Onion domes are typically found on the roofs of churches and are a distinctive architectural element that adds to the visual impact of the buildings.
They use architectural drawings and engineering plans.
They are the 'onion dome' spires on top of churches in Russia.
Dome arch
The architectural developments used in the pantheon were the use of the dome, (a perfect sphere) lighter concrete mixtures in the dome, and the use of coffers, or sunken panels in the dome to reduce the weight.
dome
dome
dome arch and brick
Central planned churches are focused on a large architectural dome. A Roman inspired central plan church will be a large space under a dome with an altar on one side. An elongated central plan church will be cross-shaped, with the dome and altar both centered where the two aisles intersect.
Russian Orthodox Church
St. Peter's Basillica