We review the observational evidences concerning the three-dimensional structure of the Galactic bulge .
Although the inner few kpc of our Galaxy are normally referred to as the bulge , all the observations demonstrate that this region is dominated by a bar , i.e. , the bulge is a bar .
The bar has a boxy/peanut ( X-shaped ) structure in its outer regions , while it seems to become less and less elongated in its innermost region .
A thinner and longer structure departing from the main bar has also been found , although the observational evidences that support the scenario of two separate structures has been recently challenged .
Metal poor stars ( [ Fe/H ] \lesssim - 0.5 dex ) trace a different structure , and also have different kinematics .