Croatian Gladiator Arena, the Pula Arena, was constructed out of the same limestones as the pyramids during the reign of Augustus 2-14 AD and is among the six largest surviving Roman gladiator arenas in the world. #gladiator #croatia #travel #pulaarena #tour #euro #memorial #photooftheday #colloseum #vacation #arena #mediterranean #explore #adventure #wall #see #amphitheater #stage #street #photography #trip #photos #tourist #traveling #croatiatravel #nice #monument #europe #pics #architecture