As its name suggests, Broadview is home to some very nice views of the Don Valley just to the west. Some of the best views are from the Bloor Street Viaduct (officially called the Prince Edward Viaduct), which allowed the city to grow to the east. When it was built in the early 20th century, the planners designed it with the expectation that someday a subway would be built. Half a century later, subway construction was simplified as a result of the foresight of the original bridge builders. When taking the subway between Castle Frank and Broadview, make sure you have a window seat on the right side of the train to catch the best views on the whole subway system.
Just to the south is Riverdale Park, from which you can see a nice view of the downtown to the south-west.