The Photography Beginners Forum description mentions that TPF has a
Photo Galleries section for posting photos for feedback or sharing.
At any rate the building looks under exposed, likely because it was back lit and an averaging in-the-camera light metering mode - like evaluative/matrix metering - was used.
When the sky is significantly brighter than your subject you can get a correct exposure of the sky or the subject, but not both with a single shutter release.
Many photographers would make 2 images - 1 correctly exposed for the sky,1 correctly exposed for the building - and then make a 2 image composite.
You could use a graduated neutral density (GND) filter to reduce the brightness of the sky so it is closer to the brightness of the subject so one release of the shutter works.
Or you could use the HDR technique and make 3 exposure that get combined in an HDR application.
The hazy look of the photo you posted looks like an attempt at doing an HDR that has to much tone mapped micro contrast.