Get ready… to be transported to the 16th century to puzzle four new, epic, fortified locations from the Age of Empires! The “Behind High Walls” Pack is our latest Premium DLC Pack which includes 4 brand-new puzzles - each with custom sound effects and hidden easter eggs! - Mar Saba Monastery: Considered among the oldest continuously inhabited monastery in the Christian world, the Mar Saba Monastery is fortress in the Kidron Valley of the Palestinian West Bank. - Sokol Fortress: Named as the “Falcon City”, the Sokol Fortress was built as a Croatian outpost overlooking the borders of the Ottoman Empire in the Balkans. - Alcázar of Segovia: Like many fortifications in Spain, the Alcazar of Segovia was built upon an older Roman fortress during the medieval period by the Berber Muslim Almoravid dynasty in Spain. - Valdštejn Castle: Built as a Gothic fortress for the Waldstein family near Turnov, Czech Republic, the Castle was built as a way to protect the family against local, small armies