Today, why not climb Monument and admire the views over the City. Its 202 ft and was build close to the spot where the Great Fire of London started on Pudding Lane. 

http://www.themonument.info/

Nelson's Column is a monument in Trafalgar Square in central London built to commemorate Admiral Horatio Nelson, who died at the Battle of Trafalgar in 1805.

The Albert Memorial is located in Kensington Gardens on Albert Memorial Road opposite the Royal Albert Hall.