(Image courtesy of http://www.romethesecondtime.com )
Project for new venues to host the 2009 World Championships swimming. The project was abandoned before completion. The half finished buildings that cost Italy 250 million € lay abandoned in the fields outside Rome.
Budget: 320 million €
Cost at moment of abandon: 250 million €
The following are crude notes and links I have gathered during my research. The information may be in various languages and is being updated during the research process until a full article is written.