Just before the Tower Shop you will see a small round building on your right. The is the entrance to a tunnel that goes under the River Thames. It was planned as a pedestrian river crossing, but is actually only used as a service tunnel for pipes.
Westminster Walking Tour ReviewWestminster Walking Tour Photos
The South Bank Photo TourTrafalgar Square SightsLondon Pictures
©2012 About.com. All rights reserved.
A part of The New York Times Company.