Torre de Serra da Estrela – Perched at the highest point of mainland Portugal, the Torre, a simple stone lookout, marks the summit of the impressive Serra da Estrela mountains. Rising 1,993 meters above sea level, it offers breathtaking views of rugged peaks, deep valleys, and crystal-clear lakes. The mountains themselves are famous for their dramatic rock formations, vast valleys, and snow-covered slopes in winter that attract hikers and winter sports enthusiasts alike. The Torre stands not only as a geographic high point but also as a symbol of the natural beauty and adventurous spirit of the Serra da Estrela.