The Jubiläumswarte is a weather station turned into a super rad lookout point in the western area of Vienna, somewhere deep in the 16th district.
Climbing up the many flights of stairs is definitely worth it, and not just because you’ll get in an extra workout, but also because the panoramic views awaiting you at the top are absolutely marvelous. The best thing about it is that it’s completely free to go up there AND it’s open 24 hours in summer!