High Quality Content by WIKIPEDIA articles! Nakheel Harbour and Tower was a multibillion dollar real estate project planned in Dubai, United Arab Emirates. It was being built by the developer Nakheel, who once declared that the finished development will be the new, unofficial capital of Dubai. When completed, the project was expected to contain the world`s tallest structure, the Nakheel Tower, and the world`s largest inner city marina. The site was to cover approximately 270 hectares. The development and masterplan of the project are based on Islamic principles of design. The project was cancelled due to the Late-2000s financial crisis.