Book cheap flights from London to Tehran on CheapOair.co.uk! Covering an area of 18,909 square kilometres and serving as the capital of Iran, Tehran is a beautiful city with a lot of greenery and beautiful attractions. Serving as the most important landmark of the city, the Azadi Tower has a typical Islamic architecture. The Treasury of the National Jewels has the largest collection of jewel in the entire world while National Museum of Iran houses an extensive collection of artefacts depicting the history and culture of Iran. Make a sure shot visit to the Golestan Palace, which is considered to be the oldest historic monument of the city. Adventure enthusiasts would love walking through the Daniyal Cave while nature and animal lovers will have a great time at the Darabad Museum of Natural History. When vacationing in Tehran, don’t miss classic attractions like the Jamshidieh Park, Tehran Bazar and the Glassware Museum of Tehran.