4National Air and Space Museum, Washington DC
The biggest of all Smithsonian institutions and the world’s largest collection of memorabilia from aviation history, the National Air and Space Museum had 6.7 million visitors in 2014. It’s easy to why! The fascinating relics of human flight are enough to keep visitors enthralled. There’s the intriguing 1903 Wright machine along with the oldest existing picture of an aircraft to a thrilling space shuttle and more. Entry is free for visitors. This one’s a must for aviation enthusiasts and flyers.
