Holy grail: Did you mean...?

Enlil in the E-Kur (c. 2000 BCE) is a Sumerian hymn praising the sky god Enlil, his temple/ziggurat at Nippur, and his consort Ninlil, depicting all three in glowing terms and Enlil as a creator-god. The piece is highly regarded as an important...

The Byzantine Church of the Holy Apostles, Athens. Built c. 1000, it is typical of the Byzantine church model copied everywhere across the Byzantine Empire.

Equestrian portrait of Charles I of Spain aka Charles V, Holy Roman Emperor by Titian depicting Charles V at the Battle of Mühlberg in April 1547 where he defeated the Protestant forces of the Schmalkaldic League, 1548. Museo del Prado...

Boniface cuts down holy oak of 'Jupiter' or Donar.

A medieval manuscript illustration depicting the Holy Roman Emperor Henry VI (r. 1191-1197 CE). (Codex Manesse, 1305-1315 CE)

Tomb of Holy Roman Emperor Frederick II (l. 1194-1250 CE) in Palermo, Sicily.

Illustration of an enthroned Charles the Bald, Holy Roman Emperor (r. 875-877 CE), King of West Francia (r. 843–877) and Italy (r. 875–877). Copied by G.W. Hutin, 1821, from a 9th-century manuscript of the Gospels. The British Museum, London...

The 'Banner of the Holy Wounds' which was used by protesters during the Pilgrimage of Grace uprising of October 1536 CE against the reforms of the Catholic Church made by Henry VIII of England (r. 1509-1547 CE).

Illustration of an enthroned Lothar I, Holy Roman Emperor (r. 840-855), King of Middle Francia (Lotharingia) and Italy (r. 843-855). Copied by G.W. Hutin, 1821, from a 9th-century manuscript of the Gospels. The British Museum, London.

The Holy Cross Cathedral is the main Greek Catholic church of Uzhhorod, Ukraine and is the residence of the Mukachevo bishops. The cathedral was founded in 1640. The exterior of the cathedral is done in the neoclassical style.