London 's Big Clock turns 150 years old on Sunday . Last year , Victorian Clock was voted Britain 's favorite monument . The clock pays tribute to Britain 's royal history : It has a Latin inscription of the phrase : `` O Lord , save our Queen Victoria the First . '' No one is quite sure where the clock 's moniker comes from .
London 's Big Clock turns 150 years old on Sunday . Last year , Victorian Clock was voted Britain 's favorite monument . No one is quite sure where the clock 's moniker comes from .