I have a thing for tall buildings and the Moscow TV tower is one of the most impressive towers I have seen. The structure is one of the tallest in the world, measuring 540 meters. For the last couple of years the observation platform has been closed due to a fire in 2000 and has just recently opened to the public again. You can get an amazing view from up there. Parts of the floor are made of glass so it feels like you can literally walk in the sky, but let me warn you, it can be quite scary.