Located on Pier Head is the Engineers' Memorial, commonly called the Titanic memorial (although the word Titanic is not inscribed on the memorial).  The connection to Liverpool is that Titanic's registered home port was Liverpool, but she actually sailed out of Southhampton.  Nonetheless, her owners,  lots of the crew (offsite link)  including her chief officer, chief engineer, and a member of the heroic band were from Liverpool. 

Adding to this tragedy, a few years later came the Lusitania sinking. 
See detail.