Gas-filled Nixie tubes, made by hand in the 1960s, have become nearly impossible to find. Yet there are six of them in Adatte Design's Nixie Time Zone V2 desk clock. It's designed to display the time in five different zones, sequentially, with the unique glowing tubes spelling out the hours, minutes, and seconds in New York, London, Geneva, Dubai, and Taipei. The body is milled from a solid aluminum cylinder and anodized a bronze gray, and many of the components are finished by hand, including the orange-enameled engravings that mark the names on the twisting city selector. Limited to 100 examples.