History, architecture, and plant life collide at Allan Gardens Conservatory, a park with a series of connected Victorian-era greenhouses in the center of Toronto with 16,000 square feet of space to hold its botanical collection. Though the Toronto Horticultural Society inaugurated a garden on the site in 1858, the central Palm House, designed by architect Robert McCallum, opened in 1910. Subsequent additions have expanded the gardens’ holdings to include a tropical house, an orchid house, a temperate house, an arid house, and a children’s conservatory. Because the gardens are enclosed and protected from the cold, they’re open 365 days a year. There’s also an (outdoor) arboretum with 55 species of trees, providing lovely green space for Torontonians. Catch the three seasonal floral shows for a multicolored spectacle: the Spring Hydrangea Show, the Fall Chrysanthemum Show, and the Winter Flower Show.