Montreal Olympic Stadium, the building is very grand, the distance looks like a tall sail of a round flying saucer, both unique and beautiful, but unfortunately it originally had a sad story. Originally, this stadium was the main hall of the 1976 Summer Olympics, can accommodate more than 50,000 people, has a 175-meter tower, the world's tallest tilted building. This stadium was built in a huge scale, covering an area of 750 mu, all kinds of halls are complete, magnificent! But the dream is good, the reality is cruel, with the steel cable involved in the roof of the pavilion was disconnected, and the roof was soldered instead, huge expenses, making this Olympic Games the world's most losing Olympic Games, 30 years later will be 7.5 billion debt to pay off. Sad reminder!