Zarafshan is a closed gold-mining city planted in the middle of the Kyzyl Kum desert in northern Uzbekistan. It exists entirely because of the Muruntau gold deposit nearby — one of the largest open-pit gold mines in the world — and it has essentially no reason to exist otherwise. The city is home to an expat community of miners and engineers, but almost no travelers ever make it here.
Getting in is the real challenge. The city has historically required a special permit to enter, and local police have been known to turn away visitors who show up without the right paperwork. Check the current permit requirements before attempting the trip. If you do manage to get in, the bleak Soviet-era grid of apartment blocks against a backdrop of endless desert has a strange fascination — a company town at the edge of the world.
There are several flights connecting Zarafshan to Tashkent, which is the only realistic way to arrive. The even more remote settlement of Uchkuduk lies further into the desert and is sometimes visible from the air on the Tashkent–Urgench route.