Hortulus Spectabilis Gardens, Poland
This hedge maze, and the gardens around it, are a work of art. A very new addition to this list, these gardens in Dobrzyca, Poland were opened to the public in 2014. The maze, made of 18,000 tree seedlings, contains ten different clues throughout its nearly two miles of paths. The 65-foot observation tower in the middle was built to resemble DNA strands, and from its top, you can see all the way to the nearby Baltic Sea. The colorful floral arrangements surrounding the maze are known as "the Gardens of Magic, Energy, Time, and Space."