Scott C. Warring, author of UFO Daily, looked at pictures of Mercury taken by NASA and discovered this unusual black door. It is long in the shape of a rectangle, all four corners inside a perfectly correct. If the planet were beaten rectangular meteorites, then it seems to be doing ancient aliens.
So NASA finds "crater, which has just appeared in the center of the photo is 42 km (26 miles) in diameter," — it gives us the approximate size of the doorway. To cross the entire crater, we need a 7.5 size door, the door itself is opening has a size of 5.6 km in length, or 3.4 miles. This is a huge door for giant ships traveling here. Check it out for yourself, the source below.