The crashing waters of Niagara Falls—comprising two American falls and one Canadian—are truly a sight to behold. Get up close on a boat ride (be prepared to get soaked!), enjoy amazing aerial views from the Skylon Tower or on a helicopter tour, stroll along the White Water Walk, or hit the Journey Behind the Falls attraction that offers views of the falls from below and behind. Adventure seekers can also go zip-lining, jet-boating, hiking and cycling with the falls as the backdrop. For a truly magical experience, stay after dark when the falls are illuminated. For peak water flow, visit between June and August. – Tripadvisor

Climb this 1,815-foot-tall observation tower to have the whole of Toronto at your feet and overlook up to 100 miles on a clear day. Once the tallest structure on Earth for over 30 years, the CN Tower attracts travelers to its two observation decks—one of which features a glass floor. If you’re looking for an extra thrill, try Edgewalk, where you can walk hands-free on a ledge surrounding the top floors. The tower is also home to the award-winning 360 Restaurant, which completes a rotation around the structure every 72 minutes, giving you an ever-changing view of the city while you dine. – Tripadvisor

Explore the Waters of the World at Ripley's Aquarium of Canada. Located in the heart of downtown Toronto at the base of the CN Tower, the aquarium is Toronto's must-see attraction for tourists and locals of all ages. Immerse yourself in a world of 20,000 aquatic animals and discover your own underwater adventure. The Aquarium features North America’s longest underwater viewing tunnel with more than 5.7 million litres of water and over 100 interactive opportunities. Get up close and personal with several touch exhibits featuring horseshoe crabs, sharks, scarlet cleaner shrimp, and stingrays as well as daily dive shows every 2 hours. This awe-inspiring attraction consists of nine carefully curated galleries showcasing a cross section of saltwater and freshwater environments from around the world – starting with species from Toronto’s backyard, the Great Lakes basin.

All roads to good food lead to St. Lawrence Market, a city landmark more than two centuries old. Two hundred vendors sell everything from local mustard to fresh pasta, lobster to artisanal bread.

This park in Toronto is a haven for travelers looking to spend a fun-filled day in the great outdoors. Rent a bike at Centre Island Pier—which has fantastic views of Lake Ontario—and explore the park's many trails and paths. You can also have a picnic at Olympic Island while admiring the stunning views of the Toronto skyline. The kids will love the Centreville Amusement Park and petting zoo, too. In the evening, head to Hanlan’s Point Beach to catch one of the best sunsets in Toronto. The park can be explored on a bike tour of Toronto, which often includes other sights along the city's waterfront. – Tripadvisor

Niagara's Only Lakefront Winery. Founded in 1893 outside of Stuttgart Germany, Founded in 1984 in Niagara-on-the-Lake.100% Niagara grown and produced VQA wines crafted, owned and operated by the Konzelmann family. Tasting Boutique, Tours, Private Experiences, Cheese Platters, Full Production Facility, Barrel Cellar, Corporate Events, Special Event Dinners/Luncheons, Weddings, Lakefront Vineyard with view of Toronto, CN Tower, Rogers Centre. Proud Canadian first to place on "Wine Spectators Top 100 List"

Three Gothic Revival-style buildings, located on a 170-foot bluff overlooking the Ottawa River, house the offices of the members of Parliament, the House of Commons and the Senate. Free guided tours delve into Canadian history and explain the workings of the political system.

Opened in 1914, the Royal Ontario Museum (ROM) showcases art, culture, and nature from around the globe and across the ages. One of North America's most renowned cultural institutions, Canada's largest museum is home to a world-class collection of more than six million objects and specimens, featured in 40 gallery and exhibition spaces. As the country’s preeminent field research institute and an international leader in new and original findings in biodiversity, palaeontology, earth sciences, the visual arts, material culture and archaeology, the ROM plays a vital role in advancing our global understanding of the artistic, cultural and natural world.

Built in 1914, this castle on a hill overlooking Toronto is regarded as a treasured heritage landmark. At Casa Loma, you can explore three levels of elaborately decorated rooms, including the Conservatory which has Italian marble floors and Ontario marble side panels. Permanent exhibitions and special exhibits here feature early Canadian history. The castle is also a popular place for private events, and serves as a backdrop for film and photo shoots. There's even a steakhouse located within the grounds offering the finest beef from all over the world. The tour of Casa Loma is self-guided but multimedia audio guides are available. – Tripadvisor