45 Times People Came Across Interesting Doors and Had to Take a Picture

We thought we’d spice up this list of unique doors with a shower door. What makes this shower door so unique? Well, as you can tell from the picture, it has a seemingly innocent hole in the middle of it.

But this hole has a very practical purpose. It allows you to turn on the water and adjust the temperature from outside the shower. That way, you don’t have to stand in the shower and wait for the water to heat up or get your arm wet, but you can pre-heat the shower.