Thankfully, internet users are here to enlighten us on the usefulness of these objects!

This desk hides a spare bed

First puzzle: a wooden platform that lifts up, attached to a separate piece of furniture. Surprise: it's a desk-bed! Thanks to a metal bar (often removable), the platform can be tilted to different angles. Perfect for reading or working in bed in cozy comfort.

A mini-door within the main door?

It looks like a secret hatch from a spy movie. In reality, this small opening simply allows you to talk to someone outside without opening the door wide. Discreet, practical, reassuring.
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