riga panorama with television tower, daugava river and noctilucent clouds above before the sunrise on july

backgrounds daugava river latvia nlc riga architecture astronomy atmosphere baltic beautiful bright building city cityscape clouds dawn dusk europe famous glow high landscape light luminescence mesospheric nature night person noctilucent nordic outdoors panorama phenomena scenic shining silver sky skyline space stars summer sunrise television tower tranquil tv twilight urban view water weather