Mitchell Construction Group 15"x15" Im not sure about the depth, but it looks to be about 18". Most of the woodwork was done onsite, or by a custom cabinet maker.
Towel racks, especially when built into the bathroom wall, provide a great bit of important storage. I like the unique design of this one although it might not be as functional as more traditional towel rack.
My favorite solution is this unique shelf made just for towel rolls. It is similar in design to a wine rack, and it looks like wall art.
Do you have any other great ideas to share?