St Paul's was designed by Sir Christopher Wren. Dickens would have known St Paul’s, which dominated London in Victorian times the way modern skyscrapers do today. The St Paul's you see today has recently been restored to its original light yellow colour, whereas in former times the Portland stone had turned a dark grey.

The Guildhall is a Gothic building with many spires. The building dates to the 14th Century and was financed by the famous Mayor of London, Richard Whittington. Just inside the entrance hall are statues of the giants Gog and Magog.

Mansion House is a magnificent classical building with a grand portico and Corinthian columns. It was built in the 18th century and since then has been the home of the Lord Mayor of London.

This is the third Royal Exchange to be built. The previous two were destroyed by fire. On the top of the portico you'll see Latin inscriptions stating that it was constructed in the 8th year of the reign of Queen Victoria.

There has been a market at Leadenhall since 1377, but the present building was constructed in 1888 by Horace Jones, who also designed Tower Bridge. This is the perfect setting for Dickensian films. For the film of 'Bleak House', the whole market building was filled with smoke to recreate the foggy atmosphere of Victorian London.