The Middle East has had many outlandish projects over the years. As part of our summer series, we will be looking back at some of the most colourful and extraordinary proposals and investigating what happened to them.
The first project, which made global headlines back in April 2015, was a proposal to build an underwater tennis stadium off the Dubai coast.
The plans were pitched by Polish architect Krzysztof Kotala, who has a Master of Science in Architecture from Kraków Polytechnic and owns the 8+8 Concept Studio in Warsaw.
