First, you have to see the video,
The ‘dragon’ and the ‘spider’ have sprung forth from a French street theatre group known as La Machine and the La Machine ‘experience’ is making its début in North America in Ottawa, Ontario (July 27 – 30, 2017) as part of Canada’s 150th celebration.
Here’s more about La Machine and the ‘experience’ from the city of Ottawa’s event page,
Making its debut in North America, La Machine will captivate the public with its travelling urban theatre in the streets of downtown Ottawa.
Wandering around in public spaces, the protagonists will invade the heart of the capital in a show entitled “The Spirit of the Dragon-Horse, With Stolen Wings”. They will live among us for 24 hours a day over the course of four days as they pursue their quest and fulfill their destiny.
Part dragon and part horse, LongMa stands 12 metres high, 5 metres wide and weighs 45 tons. Although his body is made of wood and steel, we quickly fall under his spell and connect with him on an ethereal level. From the top of his hooves, he trots with elegance, gallops, rears himself up and lies down.
With his piercing gaze, LongMa scours the crowd and interacts with them thanks as his neck rises, lowers and oscillates from left to right. His ribcage swells under the pressure of his lungs. But be careful, the warm breath coming out of his nostrils could quickly be transformed into fire coming out of his mouth.
Beautiful and repulsive, aggressive and gentle, the giant spider will give you chills. Her eight legs and body that synchronize as she crawls around town gracefully. Like a dancer, she wanders, steps over trees, streetlights and bus shelters… At rest, she is 5.7 metres high and 6 metres wide, but she can reach up to 13 metres when in motion. Fully outstretched, she is about 20 metres long.
Will she extinguish LongMa’s flames with the water deployed from her abdomen?
Making its debut in North America, _La Machine_ will captivate the
public with its dramatic urban theatre experience – and you can get
exclusive access at the Canada Aviation and Space Museum!
From July 15 to 24 [2017; emphasis mine], the Museum will be hosting a variety of
larger-than-life activities leading up to the big performance.
Activities include special viewing areas, a mini exhibition about _La
Machine_, a film about Long Ma the Dragon-Horse, creative activities and
a special lecture with _La Machine_’s creator. All activities are FREE
with Museum admission. Find out more by visiting our website. 
THE MAKING OF_ LA MACHINE_ WITH FRANÇOIS DELAROZIÈRE
Join François Delarozière, the visionary artistic director and
engineer behind the wonders of _La Machine_, for an afternoon of insight
and conversation exploring the street theatre company’s history and
the creative process behind its fantastical mechanical masterpieces.