Holy grail: Did you mean...?

A map in German of central Europe during the time of the Hohenstaufen Emperors, primarily showing the territories of the Holy Roman Empire and the Kingdom of Sicily. The map is a vectorised version of this map from Professor G. Droysens...

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.

The Church of the Holy Sepulchre, Jerusalem. Completed in July 1149 when the city was the capital of the Kingdom of Jerusalem, the church replaced a smaller version on the site considered to be the place of Jesus Christ's crucifixion and...

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

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...

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.

Gold coin of Holy Roman Emperor Frederick II, minted in Sicily between 1211-1250 CE. Weighs 5.2 grammes and measures 20 mm (British Museum, London)

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 Holy Cross Episcopal Mission, Wounded Knee, South Dakota, used as a hospital for the wounded Lakota Sioux following the Wounded Knee Massacre.