2Château du Haut-Koenigsbourg’s Little Sister: Château de Fleckenstein, Alsace

While Haut-Koenigsbourg attracts large crowds, nearby Château de Fleckenstein offers a quieter yet equally fascinating experience.

Built into a 300-meter-long sandstone ridge, this semi-troglodyte fortress stretches dramatically along the rock, blending nature and architecture. Visitors can explore caves, stairways carved into stone, and restored walkways overlooking forested hills. The sense of adventure and mystery makes Fleckenstein ideal for families and explorers.