Starry Night by Vincent Van Gogh. This painting depicts the view outside Van gogh's sanitorium room window at Saint-Rémy-de-Provence, at night. Made even more famous by singer, Don McLean's 1971 song, 'Vincent' (Starry, Starry Night).
"Sunflowers, c by Vincent Van Gogh. This is one of my favorites in person. The texture and depth given to the flowers is captivating. Sunflowers are my favourite flower so this painting has always been a favourite of mine.