The Boyle Hotel-Cummings Block is now on the National Register of Historic Places! Read more about this recently restored, historic treasure at either the National Register of Historic Places or the Los Angeles Conservancy.
On the UNESCO list of World Heritage Sites, Mariachi Music was added as an “intangible heritage” worth preserving, as noted in this link. Read the full article here: http://www.abc.net.au/news/2011-11-28/mariachi-put-on-un-heritage-list/3699216