Rome

Digitales - Forum Romanum
Stanford Digital Forma Urbis Romae Project
Lanciani's Forma Urbis Romae
Digital Augustan Rome
Encyclopaedia Romana
Digital Prosopography of the Roman Republic
Republic to Empire
De Imperatoribus Romanis: An Online Encyclopedia of Roman Rulers and Their Families
Roman Legions (The Roman Military Museum)
Roman Legionary Fortresses