<https://bcn-guide.com/informacion-interes-visitar-barcelona/transportes/golondrinas-de-barcelona/>
<http://schema.org/datePublished>
"2018-03-31T14:05:34+00:00"^^<http://schema.org/Date>
<https://bcn-guide.com/informacion-interes-visitar-barcelona/transportes/golondrinas-de-barcelona/>