Amazon is set to unveil its $4billion 'mini-rainforest' Three Spheres campus in downtown Seattle with 40,000 plants, a 55ft tall Ficus tree, a suspension bridge, and climate control that simulates a breeze (16 Pics)

The e-commerce giant is set to unveil its $4billion urban campus in downtown Seattle on Monday that features an innovative mix of office space and exotic plant life 

The company's hard-working employees will be able to take a break from the daily grind by walking along stone pathways, observing mini-waterfalls, and enjoying the plant life from exotic locales in South America 

The massive project includes three office buildings in the shape of spheres – the tallest of which is 90 feet tall and 130 feet in diameter 

The three giant steel-framed, glass-enclosed domes at Sixth Avenue and Lenora Street in Seattle will house over 800 employees 

Vehicles pass in front of the Amazon.com Inc. Spheres in Seattle on Tuesday. The online retailer is scheduled to unveil the spheres Monday morning following seven years of planning and construction

The image above shows a 50ft-tall wall adorned with exotic plants inside the the Three Spheres in downtown Seattle

The top of a 55-foot-tall tree nicknamed Rubi (short for Ficus rubiginosa), center, stands inside the Amazon.com Inc. Spheres in Seattle

The massive project includes three office buildings in the shape of spheres – the tallest of which is 90 feet tall and 130 feet in diameter

The three giant steel-framed, glass-enclosed domes at Sixth Avenue and Lenora Street in Seattle will house over 800 employees

The staff members who will work there will have the luxury of admiring more than 40,000 plants from 400 different species from the company's Woodinville greenhouse

There is also a meeting place for employees known as 'the bird's nest,' which looks more like a wooden treehouse suspended 30 feet in the air

For the employees working inside, the company built a suspension bridge allowing them a view of the large tree

Amazon's construction of the spheres generated 600 full-time jobs, ranging from design to actual building. The company even called on a horticulturalist to oversee the installation of plant life

Ventilation ducts pump in fresh air for the benefit of a five-story wall of plants, like those seen in the above picture

At the highest point of the spheres, workers and visitors can lounge in a hangout spot (as seen in the photo above)

Amazon's construction of the spheres generated 600 full-time jobs, ranging from design to actual building

Water mists from a wall of plants inside the spheres. The unveiling of its downtown Seattle campus comes in the midst of speculation as to which city Amazon will choose as the home of its planned $5billion second headquarters project

'This structure is about thinking big and thinking long term,' said John Schoettler, the head of Amazon's global real estate division

A visitor stands on the suspension bridge inside the facility

Ron Gagliardo, senior manager of horticultural services at Amazon (right), and John Schoettler, vice president of global real estate and facilities for Amazon, point out various species of plants inside the campus