With sandstone as the main material, the city center of Angkor Wat rests solemnly under blue skies just outside of Siem Reap. Built in the classic style of Khmer architecture, this building houses various courtyards, libraries and shrines that were once the beating heart of Siem Reap and its rulers. Even though Angkor Wat is no longer the reigning epicenter of Cambodia, the hundreds of thousands of yearly visitors continue to beat a steady pulse and keep this vibrant historical sight very much alive.