Are there any famous examples of fractals, or other closed sets, of cardinality continuum but Hausdorff dimension 0?
I can think of something ad hoc like a Cantor middle $\frac13$ set where the middle $\frac13$ is followed by middle $\frac35$$\frac24$, middle $\frac57$$\frac35$ etc. but I am looking for something natural that's been studied before.