eyesore

noun

1. An eye lesion.
2. A displeasing sight; something prominently ugly or unsightly.

   “The building, towering over its surroundings with its square concrete frame and reflective walls of gold-tinted glass, was an eyesore visible throughout the city.”

   “Two entrants shared this award for their work on two quite different stations, but with the same purpose of bringing a redundant station building back into use for the benefit of the community, with the added result of conserving an historic building. Saltash Town Council bought Saltash station building after it had become very decrepit and 'an eyesore' - such that it was nearly pulled down to make way for housing.”