Rome.
The Hemisphere. The Pantheon is a building in Rome which was originally built as a temple to the seven deities of the seven planets in the Roman state religion, but which has been a Christian church since the 7th century. Roman Pantheon. The Roman Pantheon is the most preserved and influential building of ancient Rome. It is a Roman temple dedicated to all the gods of pagan Rome. As the brick stamps on the side of the building reveal it was built and dedicated between A.D 118 and 125. One legend says that the first Roman citizens built the original Pantheon on the very site where the current one still stands in the Campo Marzo – modern Rome’s business district. The ancients constructed this first Pantheon after Romulus (753-716 BC), their mythological founder, ascended to heaven from that site. Originally, the Pantheon was a small temple dedicated to all Roman gods. Built between 27 and 25 B.C. by the consul Agrippa, Prefect of the Emperor Augustus, the present building is the result of subsequent, heavy restructuring. The Pantheon is the best preserved building from ancient Rome and was completed in c. 125 CE in the reign of Hadrian. The Pantheon was built on the exact site of two earlier Pantheon buildings, one commissioned by Marcus Vipsanius Agrippa (27-25 BCE) and the second by Domitian. The first was destroyed by fire in 80 CE and the second was struck by lightning in 110 CE and again burned down. Most historians, however, claim that Emperor Marcus Vipsanius Agrippa built the first Pantheon in 27 BC, a rectilinear, T-shaped structure, 144 feet by 66 feet (44m x 20m), with masonry walls and a pitched timber roof.
http://www.crystalinks.com/romepantheon.html http://www.rome.info/pantheon/ http://www.monolithic.org/domes-more/the-pantheon-rome-126-ad http://www.italyguides.it/en/lazio/rome/ancient-rome/pantheon http://www.ancient.eu/Pantheon/ http://www.ancient.eu/Pantheon/ http://www.monolithic.org/domes-more/the-pantheon-rome-126-ad
where was the Pantheon built