Truck left panoramic view of the Koh Ker temple towers, roots invading the mossy architecture, UNESCO heritage site, Cambodia

truck left panoramic koh ker temple temple towers covered roots mossy invade architecture unesco heritage site cambodia ancient ruins overgrown vegetation cultural architectural khmer empire marvel atmospheric ambiance mystical historical significance sacred pilgrimage archaeological exploration lush greenery towering structures hidden treasures mosscovered walls relics immersive experience preservation forgotten solitude abandoned