These are real compounds
I knew that cyclobutane existed (a ring of four carbon atoms with attached hydrogen atoms which is 'weird' in the sense that the angles between the bonds are not what would be expected for a carbon atom with four bonds [0]) but learned about the existence of ladderanes today. Their structure looks just soo unusual.https://en.wikipedia.org/wiki/LadderaneSpeaking of unusual structures, here is something like a 2D version of a ladderane:https://en.wikipedia.org/wiki/Fenestrane[0] https://en.wikipedia.org/wiki/Orbital_hybridisation#sp3