Our colorful friend DJ Misc has a fun collection white-space "rivers"—typographic columns of gaps in a text. This one
, for example, has a delightful em-dash "bridge" crossing the river of white space. Here
are two more dramatic examples.
Joining in the fun, we discovered a deliciously ironic river of white space, in a text on how the White River area of the Black Hills region was affected by "rapid weathering and vigorous erosion." DJ Misc has added it to his collection.