1) Dacian fortress in Romania 
Tapae was a fortified settlement, guarding Sarmizegetusa, the main political centre of Dacia. Its location was on the Iron Gates of Transylvania, a natural passage breaking between Țarcului and Poiana Ruscă Mountains and connecting Banat to Țara Hațegului. This made it one of the very few point through which Southern invaders could enter Trans...