Commonwealth Avenue is a major thoroughfare in Boston, Massachusetts, known for its tree-lined median and historic brownstone buildings. It runs from the Boston Public Garden to the city’s western neighborhoods, providing a scenic route through the city. The avenue is part of the Emerald Necklace, a chain of parks designed by Frederick Law Olmsted. The area is home to several notable institutions, including Boston University and Boston College. Commonwealth Avenue also features a mix of residential and commercial spaces, making it a vibrant part of the city. Its wide sidewalks and green spaces encourage walking and outdoor activities.