St. Paul's Cathedral, London

St. Paul's Cathedral, designed by Sir Christopher Wren, is an architectural masterpiece and an iconic symbol of London. Famous for its magnificent dome and Baroque style, the cathedral boasts breathtaking interior decorations, including the Whispering Gallery and the Golden Gallery, offering panoramic city views. It's a place of worship, historical significance, and architectural grandeur, making it a must-visit for those interested in London's religious and cultural heritage.