If you fancy a puzzle that feels like a little city break, this one’s a treat. O’Connell Bridge stretches across the River Liffey with those gorgeous reflections doing half the work of making the scene look painterly and calm.

There’s loads to enjoy as you build: the soft blue sky and clouds for steady progress, then the satisfying shift into the colourful Dublin buildings and riverside details. The stone arches of the bridge give you brilliant structure, and the water adds a lovely challenge with changing shades and ripples.