Tallinn, the capital city of Estonia, boasts a rich history and a vibrant urban landscape, making it a paradise for urban explorers. From crumbling medieval fortifications to abandoned Soviet-era factories, there's no shortage of hidden gems waiting to be discovered. In this list, we'll delve into the best crowdsourced urbex spots in and around Tallinn, showcasing the city's unique blend of Gothic, Baroque, and Soviet-era architecture.