On a corner just east of the Holy Sepulchre, St Alexander’s Church is the home of the Russian mission in exile. The attraction for visitors is a much-altered triumphal arch that once stood in Hadrian’s forum, built here in AD 135. Through the arch and to the left at the top of the steps you can see a section of the pavement that was once part of the platform of Hadrian’s temple to Aphrodite. Ring the bell to enter.