Pretty much every city and town has a homeless population. The homeless are extremely vulnerable during the winter time, as well, and while some cities offer things like shelters which aren't always very pleasant places to be, Ulm, Germany, has come up with a different solution. The city has a bunch of protective pods scattered around that people can use to get a good night's sleep and keep warm during winter.
They've been dubbed "Ulmer Nests," and as you can see from the photo, they actually look pretty comfortable and much nicer to stay in than a homeless shelter.