I love taking sunrise photos at Niagara Falls (sunset is on the wrong side for me).  I'm working on filling a collage frame with various seasons and went to get a winter shot.  I wanted to try a long exposure to make it seem more "frosty" and the result gave me rays from the sun coming up.  I used a Canon EOS m5 with a prime lens (32mm) and an nd filter as well as a tripod (too cold to hold the camera with shivering, was -10C this day).