Unusally designed sunken church garden that's perfect for a pit stop if you've been visiting the Tower of London.

An interesting herb garden containing all the plants with which surgeons needed to be familiar.

Behind the Barbican Centre is a spacious courtyard overlooking a lake – a great spot for relaxing on a sunny day. Inside, visitors will find a plant-filled conservatory.

Worth a visit for its fascinating history, this City garden was originally a plague pit (Bone Hill) and is where famous nonconformists such as Daniel Defoe and William Blake were laid to rest.

Newly landscaped area in front of the City Information Centre, near the north entrance to Millennium Bridge, and with a ring-side view of the majestic St Paul's Cathedral.

A pretty ruin which brightens up the corner of two busy City roads.

Set back from busy City road Queen Victoria Street, Cleary Garden is a well-hidden gem of green space that's ideal for a break from sightseeing.

Worth visiting for its moving sculpture, Gilt of Cain, which commemorates the abolition of the transatlantic slave trade in 1807 and was unveiled by Desmond Tutu in September 2008.

Redesigned as part of the City's contribution to the Festival of Britain in 1951, this garden has a year-round display of colourful bedding plants.

Finsbury Circus Garden dates back to 1606 and is the oldest public park in London. Parts of garden will be closed from March 2010 due to the Crossrail development.