Gabion walls don't need any kind of drains because they are porous throughout. Gabions can be customized to make them more useful in public spaces. Gabions can be filled with any heavy material--diverse stones, metal artifacts, obtanium, etc.
In a home short on storage, builder Todd Best worked hard to provide his client with plenty of cabinet space. This custom sliding storage unit was built into an area of the master bathroom that is normally wasted space.