Building Materials
- Baltic Sea Heritage
- Traditional Building Materials of the Baltic Sea Region [PDF]
- Plaster Conservation at Pöide Church, a 13th century church on Saaremaa. [PDF]
Building Structures
- Andres Tvauri (2007) Air Heating System in Medieval Vijandi, and Elsewhere in Estonia Viljandi Muuseumi aastaraamat pp.75-100.
Discusses 14-15th century hypocaust heating systems. - Riina Juurik, Anti Lillak (2007) Archaeological Investigations at the Castle of the Teutonic Order in Viljandi Viljandi Muuseumi aastaraamat pp.101-111.
- Arvi Haak (2006) Archaeological Excavations at Helme Castle of the Teutonic Order in 2006 Viljandi Muuseumi aastaraamat pp. 76-85
Lighthouses
- Baltic Lights: Historic Lighthouses
- Kõpu Lighthouse