Near the architectural monuments there were miniature copies of them, created for the blind people. So that they can touch and "see" them. All descriptions are duplicated with Braille text.
In Trier (Germany) you can see an elevator, where you come from one side, but do not need to exit where you came in, rather to the left. This is very cool, because sometimes architecture needs such solutions, and in Ukraine they always claim that this is not real.