The middle one of the Pier Head Buildings. The building used to be the office of Cunard Shipping Line. The building was built during WWI in an Italian palazzo style.
The right one of the Pier Head Buildings - Liverpool's most famous buildings. These buildings are also called the "Three Graces".
The Port of Liverpool Building administers the port.
I don't have much info about these buildings but the interesting feature is the Liver Birds on top of them. These cormorants have become a symbol of Liverpool but I have no idea why!