British educational charity, Eden Project International, has teamed up with Shanghai-based property developer, China Jinmao, to build the world's highest indoor waterfall in Qingdao. During British prime minister Theresa May's trade delegation to China, the duo signed an agreement which details the design, construction and operation of the $209 million attraction.

The enclosed waterfall is planned to be more than 50 meters high which is the height of the Niagara Falls in the West. This project is expected to create 80 jobs and is due to begin construction this year and open to the public in 2020.

The original Eden Project is a popular attraction in southwest England as the world's largest indoor rainforest. It features two biomes with plants collected from a diverse range of climates and environments. This year Eden Project will reach its 20 millionth visitor and has generated $2.4 billion for the regional economy since 2001.

"This is a huge development in the history of the Eden Project and the biggest step we have yet taken towards opening an Eden Project in China," said David Harland, Eden Project International's chief executive in the statement. "We are very excited about the possibilities for this attraction and the city of Qingdao and are very pleased to be working with our friends and colleagues at China Jinmao Holdings Limited."