Ideally, you'd install a vanity tower during a remodel (or new construction) so it could be perfectly integrated with your vanity and overall bathroom layout - but it can be added to your bathroom even years later.
To add one to an existing bathroom, order it from the company who made your original vanity, or have one built to match.
A mirrored door on your tower not only gives you more viewing space but can make a small bathroom feel larger.
Your tower can be configured to your liking. A glass door lightens the tower and gives you the option of adding interior lighting.
A corner tower is a great use of other wise wasted space. Put away all of those necessities that you don't want to look at on a day-to-day basis but keep them close at hand just in case.
This bathroom has so many cubbies it's a dream come true! It's not only the towers but the many drawers and use of archetecurial details that put it on my top ten list.