In 1990, several communities, including Halifax, Dartmouth, Bedford, Sackville and Cole Harbour, joined together to form the Halifax Regional Municipality. Situated around the expansive and deep Halifax Harbour, the Halifax Regional is Canada's largest urban centre east of Quebec. The city is sophisticated and diverse, but still maintains a friendly, community-oriented atmosphere. One of Canada's most historically rich cities, Halifax Regional has a number of important attractions, including the Halifax Citadel, a star-shaped fort overlooking Halifax that was built to protect the city, and Pier 21, a historic site that honours the early immigrants who made Canada what it is today. Across the bridge in Dartmouth, nature lovers will enjoy the many lakes and pathways, while historians will appreciate the Quaker House, a 1786 home-turned-museum. Bedford offers the sprawling Hemlock Ravine Park, developed by Prince Edward in 1794. People from across the Halifax regional and the world get together every year in August for the annual Halifax Buskers Festival, a favourite event that features plenty of live entertainment.