Here is a list of the most popular things to do in Toronto.
Royal Ontario Museum

The Royal Ontario Museum (ROM) is the largest museum in Canada, containing rich history with everything from dinosaurs, mummies, and Egyptian artifacts. Travel back in time and witness major events from the past. Experience ancient cultures lost in time and walk among prehistoric animals and fossils. If you are curious about our history, you can visit discoveries from all over the world in one location. Museums are a fun place to learn, discuss the past, and explore the extinction of dinosaurs. Now you can enjoy free admission one Monday night during extended hours 5:30 and 8:30pm every 3rd week of the month. Students can attend for free on Tuesdays. Friday night is the best day to visit if you are looking for a DJ and a cocktail party.
The CN Tower Edge walk

You can't visit Toronto without seeing the famous CN Tower. It has become the main tourist attraction in Toronto. Challenge your fear of heights by taking a walk along the edge of the CN Tower. Or climb to the top of the stairs of the tallest building in Toronto. You can observe the city through the floors and admire the view from the sky. At night, the CN Tower adds to the city lights downtown and lights up Toronto.
Ripley's Aquarium of Canada

Ripley's Aquarium of Canada opened in 2013 and became a popular attraction for tourists. Families can enjoy underwater entertainment in the middle of the city. They carry about 16,000 live sea and fresh water animals. Spend the afternoon with the sharks and jellyfish without a snorkel. You will be amazed at all the different underwater species and habitats to explore inside.
Roger's Centre/ Sky Dome

Toronto's Premier Sports and Entertainment Complex, The Roger's Centre, has finally changed its name back to the original Sky Dome. Famous for the convertible roof, the Sky Dome is a sports venue that hosts multiple events including baseball games and concerts. This massive dome fits thousands of seats and the stands fill up to watch the Toronto Blue Jays play each season.
Hockey Hall of Fame

Toronto's ice hockey museum is full of history, statistics, and information on teams, players, and leagues. The National Hockey League trophies including the Stanley Cup are on display. Authentic ice hockey jerseys from teams all over the world are admired in the hall of fame.
St. Lawrence Market

The St. Lawrence Market is an old historical building in Toronto located at Front and Jarvis Street and has had many renovations. It was once Toronto's City Hall and Jail House/ Police Station before 1900, and has been turned into a large public marketplace since City Hall relocated to Queen and Bay Street. Abundance, variety, and freshness are trademarks of the St. Lawrence Market. They are closed on Sundays. Open 5am- 5pm on Saturday, 8am- 6pm Monday- Thursday, and 8am- 7pm on Friday. There are many tours you can book of the marketplace and you can check out the events happening this month online.
The Art Gallery of Ontario

Visit the Art Gallery of Ontario located downtown Toronto. Starting May 25, you can purchase an annual AGO pass for only $35 unlimited access for one year after purchase. Ages 25 and under can see the AGO Collection and all special exhibitions for free, anytime! Visitors aged 18-25 must sign up for a free AGO Annual Pass and will receive a digital card. Visitors under 18 may choose to sign up with a valid email address, or may visit anytime without a Pass. Children 13 and under must be accompanied by an adult.
Toronto Islands- Centreville Amusement Park

You can enjoy the attractions at Centreville Island during the summer May to October. Centre Island visitors catch a ferry at the foot of Bay St. at the Toronto Ferry Docks, a 5 - 10 minute walk away from Union Station. Tickets for a round trip cost $3.50 - $7.25. Children under 2 are free. Strollers, wagons, bicycles are allowed on the ferry but no cars. The ferry leaves every 15 minutes in the summer but less often in winter. The amusement park opens daily at 10:30am from June 1st to September 1st and all weekends in May and September, weather permitting and is geared towards children 12 and under. There is a ferris wheel, pony rides, a carousel, bumper boats and more. Day passes for children are $25 - $35, depending on height and an unlimited summer pass is only $60 (online tickets are cheaper).
Other entertainment includes Franklin Children's Garden - a park inspired by the popular children's storybook, Far Enough Farm petting zoo (open 365 days a year and FREE), Frisbee golf course, wading pools, bicycle paths and bike rentals.
Kensington Market

Kensington Market has urban entertainment, groceries, restaurants, art, shops, and local events. During the summer, the patios are filled and the area is loud from the people and street performers/ music. The buildings are colourful and vibrant. You can admire the murals and sculptures. Many local artists set up stands to market their craft work, clothes, crystals, paintings, etc. You can also find the best fresh fruit smoothies in the summer. Pedestrian Sundays are the last Sunday of each month from May to October. Traffic is shut off and opened to performers, food vendors, and pedestrians crowd the streets. For the ultimate Kensington Market experience, visit the Kensington Market Art Fair. It is another opportunity to support local artists and vendors who set up pop-up tents, and find unique items on the market. Book a three-hour walking tour of Kensington and Chinatown if you want to experience it's diverse and popular food scene, from dumplings to bubble tea.
Casa Loma

The city has a castle in midtown Toronto at Spadina and Davenport Road. Casa Loma is a historical landmark in Toronto. Open from 9:30 am to 5pm. You can book a tour of the castle. It is massive with a beautiful estate garden, making it the perfect backdrop. It hosts weddings and private events. The unique architecture has also made it a highly desirable location for film, television and photo shoots.
Thanks for reading!