  We describe a solitonic solution-generating technique for the
five-dimensional General Relativity. Reducing the five-dimensional problem to
the four-dimensional one, we can systematically obtain single-rotational
axially symmetric vacuum solutions. Applying the technique for a simple seed
solution, we have previously obtained the series of stationary solutions which
includes $S^2$-rotating black ring. We analyze the qualitative features of
these solutions, e.g., conical singularities, closed timelike curves, and
spacetime curvatures. We investigate the rod structures of seed and solitonic
solutions. We examine the relation between the expressions of the metric in the
prolate-spheroidal coordinates and in the C-metric coordinates.
