Grotesque is known as a family of 19th-century sans serif typefaces, and Alfredo Marco Pradil seems to be a fan of it since he created this wonderful Hanken Grotesk™ font, a free and open source typeface that’s an upgrade to the HK Grotesk™ family. It offers you the possibility of choosing between various styles including extra light, light, regular, medium, semibold, bold, and black.