Carlo Raso: Book of my library: "I castelli di Federico II nell'Italia meridionale" by Carl A. Willemsen
Carlo Raso: Hall with fire-place, perhaps bed-room of emperor - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Octagonal court-yard - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Keystone with four dragons - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Capital - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: "OPUS RETICULATUM" (=Wall structure as net) at Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen - This wall type is of roman age (from 1st century BC) and only here made in Middle Ages.
Carlo Raso: Mullioned window - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Vault with six allegorical figures of a tower of Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Helicoidal staircase - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Portal of court-yard - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Octagonal court-yard - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Main portal - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Main portal - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Main portal - Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen
Carlo Raso: Castel del Monte (about 1240) at Andria (Puglia / Italy) built by emperor Frederick II of Swabia Hohenstaufen