Link a small one. When you get the image check it's resolution; high resolution images are enormous when linked to a forum.
Flying tank! A Christie idea, the Russians actually got on board for this. They later scrapped the idea, seeing it for the ridiculous concept it was. But yes it is in fact possible; just really bad.
This image is only 475x271 resolution so it's not too big. Anything under 600x600 should be fine, or even a little bigger.
If you right click the image, go properties, you'll see the resolution (image dimensions).
There's only 2 of them, this one's in Kubinka tank museum. Their funny shape helped with many things; stopping HEAT shells and helping it remain upright when fighting close by nuclear blasts, such as from the nuclear artillery and mortar units NATO had along the Russia-German border country.
1950s, the Russians. It looks bizarre, but they were serious.