Namakdan Salt Cave One of the world's largest salt caves is filled with fragile salt sculptures, salt rivers, and huge salt megadomes. Naqsh-e Rustam The ancient necropolis houses the immense rock-cut tombs of four Persian kings. Nashtifan Windmills The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting. Nasir al-Mulk Mosque A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran. Nushabad Underground City A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war. Omar Khayyam Mausoleum The beautifully designed resting place of Iran's national poet is a masterpiece of modern Persian architecture. « Previous 3 4 5 6 Next »