I know the temple is the Temple of Heaven in China, and I think the gardens are the Victoria Gardens, but I am not sure about that one.
Edit: Think that is right, found an article when it was being updated.
"Epcot Center is one of four theme parks at Walt Disney World, and the Canada exhibit, which includes the Victoria Gardens (inspired by Victoria's Butchart Gardens), the Hotel du Canada (based on the Chateau Laurier), some totem poles and an ersatz canyon as well at the O Canada! film, is one of 11 countries showcased at the park."