The main public library in San Antonio was designed to tap into the city's Hispanic heritage, according to Robey Architecture Inc.'s &lt;a href='http://www.robeyarchitecture.com/projects/mainlibrary/' target='_blank'&gt;website&lt;/a&gt;. &quot;I found touring and photographing the building to be well worth the trip,&quot; &lt;a href='http://ireport.cnn.com/docs/DOC-1116576'&gt;Glenn Nagel&lt;/a&gt; said. 