There’s just something about miniature worlds — they’re just so relaxing to look at and ponder. Think you don’t have ample room for a model train layout at your place? You may not be thinking small ...

In Salli Mandel’s 550-square-foot Washington, D.C., apartment, she was given the challenge of creating zones to live, eat, and work — all within a single (and small!) open space. But she didn’t let ...