Somewhere in Doha you will find:
Check your solution (±25m)
The checker is purely intended to help you confirm you found the general location of the
building/object/area in the first picture; Use the coordinates of the center of that building/object/area.
At the location look for:
The cache is hidden 50m, 187° from this spot.
It can be (very!) crowded during prayer times, especially on Fridays.
"Somewhere in Doha" is a series of caches where you have to find a general location using the first visual clue. The checker will show you if you got it right or not. At the location, you need to identify the exact position of the object given in the second visual clue. From this object you need to make a projection to find the location where the cache is hidden.
Each cache is hidden within 8km from the given coordinates.
Thanks, Xanthe Terra, for granting an exception on the 2-3 km guideline for Mystery caches.
Kudos to Copenhagen and surrounding cachers for the inspiration!