The most-loved places are comprised of buildings with an endless variety of details within a limited range of architecture, giving distinct and recognizable character.

Authenticity seems impossible today, with places and buildings that look like they could be anywhere, lacking harmony with nature and local culture. But designers can achieve authenticity through effective principles, and a dozen of them are listed here.

In communities across America sprawl is giving way to more diverse places. Here are a dozen keys to that trend.