An arched niche on one of the quadrants of Powerscourt House, Dublin. Dating from 1771-74 and designed by stone-cutter Robert Mack, the building’s front is entirely faced in granite from the 3rd Viscount Powerscourt’s Wicklow estate. Since 1981 Powerscourt House has been a shopping centre and while the interior is currently a mess of signage, at least the exterior remains relatively clear, allowing us to enjoy what Christine Casey has described as an example of ‘last-gasp Palladianism.’