It is located on one of the most characteristic points in the city.  In this puzzle you are looking for some objects. On the first picture it is in a man's coat. On the second one, choose heart of the lying man. In the last phase you must to guess the password - a hint says that 6 = 1 so assign the six to one and manipulate the wheel on the right (R2). You will be able to know other pairs (312). 
It is on a tower of the south-eastern monastery.  In the first puzzle you have to search the space left of the moon (below the screen) and point the proper object. Then you will get a much more difficult puzzle - turn the wheel and this will change to a symbol. First, adjust the smallest element to the white center (look at the fissures). Then, do the rest. Remember that the smallest circle you can always rotate by targeting it.  At the end you will get another picture - the object we are looking for is in the shadow.
It is situated between the characteristic towers in the center. But it is not on them, but at the bottom. Under the roof with columns.  In the first puzzle you have to light all the elements with the lightning. Now discover the hidden object - it is above the door between two black windows. At the next photo use a special view and mark a man on a chair. 
It is on the wall between two towers in the city center. These are north-eastern towers (if you will think about these complex not the whole district).  Riddle: first you will get the same puzzle as before - a three-digit code to guess. On the left you have a hint (4 = 1). Enter the code (240). Then light a bulb with a flying dollar sign. 
In the next image choose glowing ball held by the man.  You have to solve another riddle. You have a hint on the car on the left and on the newspaper. Enter code (1 - two dashes and a dot, 3 - three dashes, 9 - dash and two dots). 
It is in the ancient theater in the city.  In the puzzle the hint is on the photos. Enter the code (5 - circle and two squares, 2 - circle, 9 - triangle).  Then click the red button. Look at a blank piece of paper and look for the code.