The Kröller-Müller Museum is a national art museum and sculpture garden, located in the Hoge Veluwe National Park in Otterlo in the Netherlands. The museum, founded by art collector Helene Kröller-Müller within the extensive grounds of her and her husband's former estate, opened in 1938. It has the second-largest collection of paintings by Vincent van Gogh, after the Van Gogh Museum. The museum had 380,000 visitors in 2015.