The BD Bacatá in downtown Bogotá is a proposed $240 million, 66-story skyscraper. Instead of relying on one developer, the project is being funded through a sale of shares in the building. More than 3,000 people have invested, raising more than $145 million. When completed in 2014, it will be the tallest building in Colombia.
(via Crowdfunding a Skyscraper - Neighborhoods - The Atlantic Cities)