A border wall that features a library, burrito stand, rainwater filtration system and a solar farm? That's the idea of one Cal-Berkeley professor.
http://www.ced.berkeley.edu/ced/people/query.php?id=416&dept=all&title=all&first=Ronald&last=Rael&ce"> Ronald Rael, an assistant professor of architecture at the University of California at Berkeley, envisions a multi-purpose wall that brings the two cultures together rather than dividing them.
Here is a summary of his ideas:
http://newscenter.berkeley.edu/2011/03/29/border-wall/">• Architect envisions border wall as good neighbor
Here are links to the architectural drawings of the proposal:
And there is a YouTube video above where you can listen to Rael explaining his ideas.
I don't expect the Department of Homeland Security to be giving him a contract anytime soon but the ideas and drawings are thought-provoking considering the border wall has become such a symbol of the massive border buildup of the last decade-plus.