St. Paul's Cathedral in London is one of the most recognizable and significant buildings in England. It was designed in the late 17th century by Sir Christopher Wren to replace the previous Gothic cathedral that burned down in the Great Fire of London. St. Paul's Cathedral combines elements of Neoclassical, Gothic, and Baroque architecture. Its iconic dome has dominated the London skyline and remains one of the largest domes in the world. The cathedral serves as the mother church of the Diocese of London.