The Royal Liver Building is one of Liverpool's most iconic landmarks, standing tall at 322 feet on the Pier Head along the River Mersey. Designed by architect Walter Aubrey Thomas, this historic building was constructed between 1908 and 1911 for the Royal Liver Assurance Group. It is notable for its two Liver Birds, which are emblematic of the city, that perch atop two clock towers. These legendary birds are fabled to watch over the city and the sea. The Royal Liver Building was one of the first structures in the world to be built using reinforced concrete, marking a significant development in architectural design of the early 20th century. It is often referred to as one of the 'Three Graces,' alongside the Cunard Building and Port of Liverpool Building, forming a prominent skyline at the waterfront. Historically, it housed office spaces, and recently it has also opened its doors for guided public tours, offering panoramic views of the city and the river. The building is a Grade I listed structure, recognising its national importance and heritage.