After ex-Zappos chief Tony Hsieh died and left vast real estate holdings in downtown Las Vegas, Shalimar Cabrera thought of one use for the motels he owned.

Septic tank conversions reveal a larger conservation issue; some say the government should look elsewhere to save water as experts say the region needs more.

Red has been the required background color for all government-related stop signs since the 1950s. However, blue stop signs can also be put up by private property owners on their own land.

When his firm was hired to design an auxiliary dwelling unit in a California yard, a designer customized the project with a mix of prefabricated and original features.

He said the goal of HOV lanes is to get people to carpool with each other, but he doesn’t see that happening.

Two major rail companies have come together to unveil a plan to create America's first transcontinental railroad. Union Pacific and Norfolk Southern announced on Tuesday that they would be connecting over 50,000 route miles across 43 states from the East Coast to the West Cost, linking around 100 ports.