Boulevard Saint-Martin is a prominent street located in the 3rd and 10th arrondissements of Paris, France. It runs from the Place de la République to the Place de la Bastille, serving as a vital thoroughfare in the city. The boulevard is known for its lively atmosphere, featuring a mix of shops, cafes, and restaurants that attract both locals and tourists. The street is also notable for its historical significance, as it was part of the original layout of Paris established in the 17th century. Along Boulevard Saint-Martin, visitors can find various architectural styles, including Haussmannian buildings, which reflect the city's rich cultural heritage.