Pantheon (Greek: Πάνθεον) can refer to a group of deities of a particular culture or can refer to a temple dedicated to all deities. Since the 16th century "pantheon" also refers in a secular sense to the set of a society's exalted persons. The most notable pantheons are the Greek, Egyptian, Norse, Hindu and Celtic.
The most known such structure is the Pantheon of Rome, built in the year 27 BC. The building was dedicated to "all gods" as a gesture embracing the religious syncretism in the increasingly multicultural Roman Empire, with subjects worshipping gods from many cultures and traditions. The building was later renovated for use as a Christian church in 609 under Pope Boniface IV.