During the summer months, a free weekly yoga class is offered on Parliament Hill most Wednesdays beginning at noon. The class is very popular—sometimes attracting more than a thousand people—so it's recommended to arrive a bit early to claim a spot on the grass. Yoga mat recommended but optional; bring your own.
A collection of historic and current currencies from Canada and around the world, history of Bank of Canada and the application of interest rate in the society and economy.
A small museum at the foot of Parliament Hill with a focus on Ottawa's early history.
A working animal farm in the city. You can visit animal barns, see various demonstrations and exhibitions, and ride on a horse-drawn wagon. The museum also has a playground and picnic area. It is very popular with young children and a welcome change of pace for kids who have seen enough history after visiting some of the other sights.
Former RCAF base with civilian and military aircraft ranging from pre-World War I to modern, including 1920s-1940s bush planes, war planes from both World Wars and the Cold War, surviving components of the 1950s' Avro Arrow interceptor and Space Shuttle Endeavor's Canadarm, a Canadian-built robotic arm. Guided tours, boutique.
Galleries of fossils, mammals, birds and geology among others. Free admission Thursdays after 4PM and all day Canada Day (July 1st).