Here at Google Sightseeing we’ve previously featured photos of buildings which appear to be leaning towards each other due to the angle of the photo. However, Madrid’s Kio Towers actually do lean towards each other, here’s a ground level pic if you don’t believe me. Each at 15 degrees from the vertical, they were the first inclined skyscrapers in the world and due to the gateway-like appearance are also known as the “Puerta de Europa”.

Thanks: steve, Jon, Coquevas & Kalimero