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Bastion Tunnels. Marta Viiul 10 .a. History. The defensive tunnel system Built in the 1600s 2003 pentagonal system of limestone-lined tunnels was found. Other tunnels. Open for tours Built in the 17th century - PowerPoint PPT Presentation
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Bastion Tunnels Marta Viiul 10.a
HistoryThe defensive tunnel system Built in the 1600s2003 pentagonal system of limestone-lined tunnels was found
Other tunnelsOpen for tours Built in the 17th centuryWere renovated into bomb sheltersModernized during the Soviet period
On the tunnel tourOld equipment A slow-moving train ride
