Perched on the 94th floor of John Hancock Center is 360 Chicago. The observatory, 1,000 feet above The Magnificent Mile, gives visitors the chance to see four states — Illinois, Indiana, Michigan and Wisconsin — and as far away as 55 miles. On a clear day, anyway. The John Hancock Center is the fourth-tallest building in the city and the seventh-tallest nationwide. To reach the top, guests board elevators that travel 1,800 feet per minute, completing the trip to the 94th floor in a mere 40 seconds.