St Paul's, with its world-famous Dome, is an iconic feature of the London skyline, but there is so much more to Sir Christopher Wren's masterpiece than its impressive facade. The interior, with its glittering mosaics, intricate stone carving, and breathtaking vantage points, are just a few reasons why a visit to St Paul's is a must. St Paul's is built in the shape of a cross, with the dome crowning the intersection of the arms. It is one of the largest Cathedral domes in the world, 111.3 metres high. It weighs approximately 65,000 tonnes and is supported by eight pillars. In the crypt are effigies and fragments of stone that pre-date the Cathedral, relics of a medieval world. From Wren's original vision, Jean Tijou's beautiful wrought iron gates of 1700 still separate the quire from the ambulatory; children still test the acoustics in the Whispering Gallery; and the 1695 organ which Mendelssohn once played is still in use. Whether St Paul's is an old favourite, or you're planning your first trip to the Cathedral, we can guarantee you won't be disappointed. Ther ticket allows access to the entire cathedral. Disabled Access: access to the cathedral for wheelchair users and visitors with mobility issues is via the South Churchyard.The Cathedral may from time to time close (at short notice) due to special services of worship.