The Republic of Saugeais, the Kingdo of Seborga, the sovereign state of Forvik. You might not have noticed this, but Europe has gained 12 states over the past years. These states are so-called micro nations: areas of no man's land that have been claimed. In the Dutch show EenVandaag, Etienne Augé spoke about this phenomenon.
You can read the article and watch the video here (in Dutch).