This document summarizes important landmarks in London that the author visited during their summer trip in 2007, including Saint Paul's Cathedral, Tower Bridge, the Tower of London, the London Eye, and Madame Tussauds. The Tower of London, built in 1078 for protection, was later used as a prison where kings and others were executed and remains a symbol of the British crown. The author encourages visiting London to see these and other sights.

2. Saint Paul's Cathedral

3. Tower Bridge

4. The Tower of London

6. The London Eye

7. Madame Tussauds