Sorry if this isn't a new find, but I just realized that the shadowy afterimage of the coliseum is visible in the coliseum window itself (even if you aren't in the coliseum). If you go to the gulch, say, and put two colly windows back to back and look at a certain angle into the glass panes, you'll see the coliseum. Again sorry if this is old news but I thought it was strange no one had said anything about it before to my knowledge. I'm assuming this is an easter egg and not some sort of reflective glitch?
OH MY GOD, thats what it is!! I was playing with Black Theorem two days ago and he had two of them in a plane, and I was all like "BT, i see lights in there [I was looking at the glass diamond formed by them], lights from like, a forge piece" I had never seen or heard of it before. Now that you say it tho, it makes perfect sense of where its reflecting also, Its if your in the coliseum and its covering the window, it lines up perfectly. told yah BT (he said I was crazy, im not crazy)
Once, I was forging a map, then some metal curved structure just appeared and dissapeared for every 3 or 4 seconds, I just ignored it for 30 minutes and went back to forging, eventually it was very annoying and I ended the game, and I forgot to save the map. And then I screamed **** into the sky.
It's such a shame that this can't be used in a map somehow. You're still crazy, this doesn't disprove anything.