A software engineer spent six years and roughly $590,000 to create a single-story home on the side of a mountain in Japan.

Choosing the new-construction route comes with challenges like cost overruns, permitting delays and supply-chain issues, but also the promise of getting a fully customized home. Credit...Kate Warren ...

President Donald Trump plans to leave his mark on the nation's capital by building a Paris-like arch at one of the entrances ...