The words 'tower block' don't always stir up thoughts of breathtaking beauty here in the UK. Any city-dweller can attest to this.
But around the world, things are a bit different. At least that's what these incredible images from Dutch photographer Wouter Stelwagen would have us believe. Capturing a variety of architectural gems, he adds an extra right onto the ordinary.
You can see more of his great work here.