The world is a big place, and sometimes you don’t have all the answers to all the random questions. The Internet does, though.

There’s even a subreddit called What Is This Thing? where people post photos when they have no clue what they’re looking at, and others try to identify these interesting things. Can you believe it? A place on the Internet where you can ask and not be afraid of getting ridiculed for your ignorance and asking questions?

Unbelievable, I know. That’s why Bored Panda has compiled a list of some of the most random stuff and interesting facts found on that page, and you will surely learn a thing or two.

From an unorthodox public bathroom door design to a hole in the sky, these cool photos and the explanations behind these random things are real eye-openers. Scroll down to enjoy the images and upvote your favorites!