Pantheon, Rome

The Pantheon, meaning "Every God" is a building in Rome, built by Marcus Agrippa as a temple to all the gods of Ancient Rome, and rebuilt by Emperor Hadrian in about 126 AD. A near-contemporary writer, Cassius Dio, speculates that the name comes from the statues of many gods placed around the building, or from the resemblance of the dome to the heavens. Since the French Revolution, when the church of Sainte-Geneviève, Paris, was deconsecrated and turned into a secular monument, the Panthéon, the generic termpantheon may be applied to any building in which illustrious dead are honoured or buried.

Source: http://en.wikipedia.org/wiki/Pantheon,_Rome