With such beauty, though, comes the inevitable downside of crowds. But Braunwald, a lesser-known gem high in the Glarus Alps, has one key feature that keeps the crowds at bay: There are no cars.

For example, it is often found in Switzerland on the shores of Lakes Thun and Brienz, around Lake Uri, in the Glarus Alps, in the Rhine Valley and in the Lower Engadine, according to Bioterra.

Swiss energy provider Romande Energie recently built a 448 kW floating solar array on the surface of Lac des Toules, a reservoir located at an altitude of 1,810 meters in the Swiss Alps.