The Pantheon is essentially made out of a sectioned yard and barrel shaped space, called a cella, covered by a vault. Some would contend that the cella is the most fundamental part of the Pantheon, while the patio is just present to give the structure a façade. “Between these is a momentary rectangular construction, which contains a couple of huge specialties flanking the bronze entryways. These specialties most likely housed the sculptures of Augustus and Agrippa and furnished a devout and political relationship with the first Pantheon.” Once inside the vault, an admirer would end up in a greatly enormous space enlightened simply by a huge oculus fixated on the roof. The walls of the chamber are accentuated with eight profound breaks shifting back and forth among crescent and rectangular in shape. At the south finish of the inside is the most intricate break total with a barrel-vaulted entrance. “The six basic breaks are separated from the chamber by sets of marble sections, while aediculae (little pedimented places of worship) raised on tall podia project before the bending wall between the breaks.” Encircling the whole room simply over the breaks is an intricate traditionally styled entablature. The upper piece of the vault was enriched too, yet what remains is for the most part from an eighteenth century rebuilding. “The first improvement of the upper zone was a line of firmly dispersed, flimsy porphyry pilasters on a persistent white marble plinth.” The vault floor is embellished in a checkerboard example of squares and circles inside squares. The tiles are made of porphyry, marbles, and stones while the circles are made of plated bronze.

The pantheon was fabricated essentially of cement, save the yard which was additionally built of marble. From an external perspective of the domed segment, apparently to a passerby to be made from block, yet this isn’t true. The blocks in this segment are just a facade, or flimsy improving layer. Straightforward lime mortar that was famous during the period was made by consolidating sand, quicklime, and water. At the point when the water dissipated, the substantial was set. Roman cement utilized in the development of the Pantheon, called pozzolana, acted very like current Portland concrete and would set in any event, when the blend was as yet wet. Hadrian planned the Pantheon’s domed top to be 43.3 meters in breadth, which is additionally the specific level of the inside room. A cross part of the rotunda would uncover that it was dependent on the elements of an ideal circle, and that is the thing causes the inside space to appear to be so glorious. The sheer size of the vault was never imitated or outperformed until the reception of steel and other present day fortifications. What made Hadrian’s vault conceivable however was his utilization of concentric rings set down consistently over a wooden structure to make the essential state of the vault during development. The rings would apply strain to each other, consequently balancing out the construction. The lower part of the arch was thick and made of weighty cement and blocks, while the upper piece was fabricated dainty and used pumice to make it lightweight.