Triangula Bastion, 17th-century bastion in Riga, Latvia
Triangula Bastion is a five-sided fortification from the 17th century along Riga's city rampart, extending 61 meters with walls rising 7 to 8 meters high. The walls stand at angles between 50 and 70 degrees, showing the geometric design typical of such military structures.
Built in 1727, this fortification became a key part of Riga's defensive system. It served as a strategic point to counter artillery attacks during conflicts in the region.
The remains displayed beneath a modern glass structure show how the city's defenses evolved across centuries. You can observe how simple medieval walls transformed into more advanced military constructions.
The fortification foundations can be viewed through a modern glass building that protects the archaeological remains. Wear good shoes as the ground can be uneven in some areas.
The space between the inner and outer walls was filled with sand, a specialized construction technique that absorbed artillery impacts better than solid stone walls. This engineering approach was part of advanced fortress design methods used across Europe in the 18th century.
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