Summer Chronophage clock (National Museum of Scotland)
Whether you find this clock without hands or numbers creepy or not, it makes a good subject for a photo! The chronophage (time eater) walks along the rotating outer ring and snaps its jaws shut every minute to signify ‘eating the minute’. Interestingly, it was designed by the inventor of the kettle safety switch (which turns the kettle off once the water has boiled). It’s sat in an egg shaped recess and is backlit, hence the slightly odd shadows.