Normally limited to winter months when things are a bit quieter — the behind the scenes tours have resumed at Tower Bridge.
The tours include all the public areas, the walkways and the boiler rooms, but then take you into the operational areas including the Control Cabin and Machinery Room.
Then, deep down into the bowels of the bridge, to the immense Bascule Chambers, which house the huge counterweights that swing down into this cathedral space when the bridge opens.
As the bridge opens a lot in the summer months, the Bascule Chambers are off-limits, which is why the tours are only possible during the quieter winter months.
Do note that a modest head for heights is needed as while you’re underground, there’s an open metal staircase to navigate to get down to the bottom of the chamber.
The tours cost £50 per person, last around two hours and take place on Saturdays and Sundays during November – max 6 people per tour.
Details and booking here.