Europe had a healthy population of bison until the early 20th century, when they were hunted nearly to extinction. They are the largest land animal in Europe, but they're nearly gone.
In Germany, a project is underway to bring the European bison back on a small scale—and it's just one of many bison-restoration projects across Europe. While the German countryside won't teem with bison again, this project could bring back a few small herds. Have a look: