Saint-Omer is a charming city located in the Opal Coast region of Nord-Pas-de-Calais, France. Known for its rich history and beautiful architecture, Saint-Omer offers visitors a glimpse into the past with its well-preserved medieval buildings and picturesque canals. The city is home to the impressive Saint-Omer Cathedral, a stunning example of Gothic architecture, as well as the ruins of the Saint-Bertin Abbey, which dates back to the 7th century. Visitors can also explore the city's many museums, including the Sandelin Museum, which houses a collection of fine art and decorative arts.