Leaders and monarchs from around the world gathered in London on Monday to bid farewell to Queen Elizabeth at a state funeral of inimitable pageantry, marking the passing of a beloved figure who helped unify the nation through her 70-year reign.

Hundreds of thousands of people lined up to file past the casket of Britain's longest-reigning monarch at London's historic Westminster Hall during her lying-in-state, and thousands more lined the streets to witness a sombre display of royal pomp.

They, like many across the globe including U.S. President Joe Biden, came to pay tribute to the 96-year-old who earned respect for her sense of duty and represented a constant as Britain's role in the world diminished and changed.