Gediminas' Tower
Gediminas' Tower, a remnant of the Upper Castle, offers panoramic views of Vilnius. Climb to the top for breathtaking vistas of the Old Town, Neris River, and surrounding landscapes. It's a bit of a climb, but so worth it. I found the view surprisingly calming, even with the crowds. The tower also houses a small museum about the history of the castle and Vilnius.
Insider Tip
Visit during sunset for the most spectacular views, but be prepared for larger crowds.