Koppelpoort is a medieval gate dating back to the 14th century. It was originally built as part of the city's defensive fortifications and served as the main entrance to the city. It is considered one of the best preserved medieval gates in the Netherlands and is a national monument; It has undergone extensive restoration to ensure its preservation for future generations. A must-visit while in Amersfoort, Cobblepoort is a great place to learn about the city's rich history.