Italy plans a massive bridge connecting Sicily and the mainland, reviving a Roman concept. Despite legal approval, the project faces legal challenges, environmental concerns, and opposition from local residents.

Italy's government gave final approval on Wednesday to the construction of what will be the world's longest single-span bridge, linking Sicily to the mainland, despite environmental, financial and other concerns that have delayed it for decades.

Italy cleared the way Wednesday to build the world’s largest suspension bridge linking the Italian mainland with Sicily in a massive 13.5 billion euro ($15.5 billion) infrastructure project that has been long delayed by debates over its scale,