When I see a new accelerator in real life or on a picture, I always find it interesting to see how many thing I can recognize. In that way, I can also get a small first idea of how the accelerator is working.
Here is a picture, I have taken of LEIR at CERN![LEIR](https://i.stack.imgur.com/d8t7B.jpg)

Help me to be able to recognize even more stuff, than I can now(I will post a few answers myself)

Suggested answer form:

* **Title**
* **Images**
* **One line description**
* **Link**