Tim Halbur

A group of development agencies came together to undertake a historic-preservation and community-development effort in Cairo's Al-Darb al-Ahmar community. The project was such a success that they're still working, by invitation, restoring the area.

Federal money is making high-speed rail possible, but state governments are unsure if they can afford to maintain and operate the systems once they are in place.

Desalinization is a costly process because of the massive electricity needed to make it work. A Canadian startup believes it can cut that cost by 80% with a thermo-ionic process.

A number of hotels across the country have found that having a resident ghost is good for the bottom line, attracting tourists and thrillseekers.

A small manufacturer of wind turbines in Colorado Springs, Colorado is ramping up to become the city's first renewable-energy company, specializing in small wind systems for urban homes.