In the middle of the brutalist Barbican stands the medieval church of St Giles Cripplegate with some prominent and some touchingly simple memorials to many famous men, and one intriguing woman.
The smallest and least obvious of all City of London churches, St Clement Eastcheap is the church that features in the nursery rhyme 'Oranges and Lemons'. Today it's an office!
Fish, coffee and smudgy windows all appear in this beautifully restored Christopher Wren church which is also very well attended by the young city workforce.
No other City of London church is as surprising as this one. Its bleak and foreboding exterior betrays its crisp classical and bright interior.
This church has the great combination of music and death! And who was St Sepulchre?
St Mary Aldermary is one of the few 17th century gothic churches you'll find in the City of London. At lunch you'll hear the hum of local workers enjoying their break but at the start and end of the day the relaxed breath of a meditation group.
St Vedast Alias Foster has a secret garden containing an ancient Syrian rock familiar to Agatha Christie, a Roman pavement and a memorial to a Russian soldier who is described thus: "This was a man".
Start your pilgrimage to Santiago de Compostela here, but before you leave don't forget to listen to the church's famous bells and look for the mummified corpse hiding in the tower.
Prominently placed on Guildhall Yard, this grand church has strong links with the City of London Corporation and the livery companies. Step inside for ceremonies, symbols and sensational stained glass windows.
Just outside the eastern gate of the City of London, the welcoming church of St Botolph without Aldgate hides London's oldest organ. Hear it played and enjoy its Georgian surroundings.
St Michael Cornhill looks like like all the other 18th century City churches on the outside, but walk inside to find a church full of Victorian gothic details.
Bread shelves, pendulum-like chandelier from the West Indies, palindromes and a creepy crypt. What more could reside a City church?
You have to travel to another continent to find St Mary Aldermanbury, but here you'll find wildlife, horses, birds, swamp cypress trees and a memorial to those who brought us William Shakespeare.
The Dutch Church is one of the most hidden of the City churches and one of the newest… but its history stretches back to the 16th century and its internal features are extraordinary.
This tiny medieval church survived the Great Fire and the Blitz but in the 1990s it was very badly damaged by an IRA bomb. Step inside for some peace and reconciliation.