See all Attractions in Marken Marken for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping Kijkhuisje Sijtje Boes Havenbuurt 19 a About Kijkhuisje Sijtje Boes, Havenbuurt 19 a. In the early 1900's, a women called Sijtje Boes started the first souvenir shop here. Now, it's a tiny museum with the original interior as an exhibition. Add to Wish List