A simple walk outside doesn’t usually come with the expectation of witnessing something unforgettable. Most of the time, it’s just the same streets, familiar faces, and everyday routines. But every now and then, reality throws in a moment so strange or surprising that it stops you in your tracks.

Collected from an Instagram account dedicated to these blink-and-you’ll-miss-it encounters, this list features 40 unbelievable things people randomly stumbled upon while walking outside. From oddly timed moments to scenes that feel almost staged, these photos prove that the most unexpected sights often appear when you’re not looking for anything at all.