The CN Tower in Toronto was completed in 1976 and stands 553 metres tall, holding the record as the world's tallest freestanding structure for over 30 years. Its observation levels include a glass floor and the SkyPod. The EdgeWalk lets visitors walk hands-free around the outside of the tower's main pod.

The Royal Ontario Museum in Toronto, founded in 1914, is one of the largest museums in North America. It covers world cultures and natural history, with famous dinosaur galleries. Its striking angular Michael Lee-Chin Crystal entrance, opened in 2007, contrasts with the original heritage building.

Casa Loma is a Gothic Revival castle-style mansion in Toronto built between 1911 and 1914 for financier Sir Henry Pellatt. It has nearly 100 rooms, secret passages, towers and an 800-foot tunnel to stables. Its gardens and city views attract visitors, and it is a popular film location.

The Canadian side of Niagara Falls offers the best views of the Horseshoe Falls, where about 168,000 cubic metres of water plunge over the edge every minute at peak flow. Boat tours take visitors into the mist at the base, while the Journey Behind the Falls tunnels lead behind the curtain of water. The falls are illuminated at night.

Algonquin Provincial Park is Ontario's oldest provincial park, established in 1893. It covers over 7,600 square km of forests, lakes and rivers. It is famous for canoeing, moose sightings, wolf howling programmes and brilliant autumn colours along the Highway 60 corridor.

The Thousand Islands is an archipelago of over 1,800 islands in the St. Lawrence River along the Canada-US border. Some islands hold grand summer homes and castles, such as Boldt Castle. Boat cruises from Gananoque and Rockport explore the islands, which also gave their name to Thousand Island dressing.

Parliament Hill in Ottawa is home to Canada's federal parliament buildings, built in Gothic Revival style above the Ottawa River. The Peace Tower rises from the Centre Block, currently under renovation. Visitors watch the Changing of the Guard in summer and enjoy the Northern Lights sound and light show.

The Rideau Canal, opened in 1832, runs 202 km from Ottawa to Kingston and is the oldest continuously operated canal in North America. It is a UNESCO World Heritage Site. In winter, a section in Ottawa becomes the Rideau Canal Skateway, one of the world's largest naturally frozen skating rinks.

Old Montreal is the city's historic district along the St. Lawrence River, dating back to the 17th century. Cobblestone streets, the Bonsecours Market, Place Jacques-Cartier and the Old Port create a lively atmosphere with restaurants, galleries and boutiques.

Notre-Dame Basilica in Old Montreal was completed in 1829 in Gothic Revival style. Its interior is famed for its deep blue vaulted ceiling with gold stars, intricate woodwork and stained glass depicting Montreal's history. The AURA light and sound show brings the interior to life.

Mount Royal is the hill that gave Montreal its name. Mount Royal Park was designed by Frederick Law Olmsted, who also created New York's Central Park. The Kondiaronk Belvedere offers panoramic views of downtown, and the illuminated Mount Royal Cross crowns the summit.

Saint Joseph's Oratory of Mount Royal is a Roman Catholic basilica in Montreal and Canada's largest church. Its copper dome is one of the largest in the world. Founded by Saint André Bessette, it attracts pilgrims who sometimes climb its central staircase on their knees.

Old Quebec is the historic heart of Quebec City and the only fortified city north of Mexico with its ramparts still intact. Founded in 1608, it is a UNESCO World Heritage Site. Cobblestone streets, the Petit Champlain district and Place Royale give it a European atmosphere.

Château Frontenac is a grand hotel in Old Quebec, opened in 1893 by the Canadian Pacific Railway. Perched on a cliff above the St. Lawrence River, it is said to be the most photographed hotel in the world. The Dufferin Terrace boardwalk in front offers sweeping river views.

Montmorency Falls, near Quebec City, plunge 83 metres, about 30 metres higher than Niagara Falls. A suspension bridge crosses above the falls, and a cable car and stairways offer different viewpoints. In winter, frozen spray forms a giant ice cone called the sugarloaf.