If you want a beautiful sight, to me, there's one that is just as beautiful as a sunset over the mountains in nature, and that is the light show that is painted on the sky and the man-made mountains of a city's skyline.
Riding on the elevated train, just as the sun begins to set, a look out the window rewards you with a dazzling sight. The many purples, fiery oranges and dark blue sky is suddenly highlighted by the man-made lights springing up from the many buildings on the horizon. There you see black silhouettes, of multiple shapes and heights come alive with dots and squares of lights.
As the train moves on, the city seems to come alive as darkness falls. And you suddenly feel, as you observe this grand display, that despite all the savage acts that we inflict on this planet and one another, there's still much to be proud, much to congratulate ourselves on accomplishing.