Fort Bourtange is a historic fort located in the province of Groningen, in the Netherlands. The fort was built in 1593 by the Dutch to protect their borders from invasions by the Spanish during the Eighty Years' War.

The fort is star-shaped and surrounded by a moat and walls made of earth and sod. The walls were designed to withstand artillery fire, and the moat was filled with water to make it difficult for enemies to approach. The fort's design made it one of the most advanced military fortifications of its time.

Today, Fort Bourtange is a popular tourist destination that offers a glimpse into Dutch military history. Visitors can explore the fort's various rooms and halls, including the barracks, the gunpowder magazine, and the captain's residence. The fort is also home to several museums that showcase the history of the fortification and the surrounding region.

In addition to its historical significance, Fort Bourtange is also known for its beautiful surroundings. The fort is surrounded by a nature reserve that offers hiking and biking trails, as well as scenic views of the surrounding countryside.