The Gateway of India was built in 1924 to commemorate the visit of King George V and Queen Mary to India in 1911. The royal couple landed at Apollo Bunder (where the monument now stands) during their Delhi Durbar celebrations. The monument's inscription reads 'Erected to commemorate the visit of King George V and Queen Mary.' Options A and D are incorrect - Diana/Camilla are from a different era, and Charles II was 17th century.