Millennium Bridge, London people walking caused small sideways oscillations in the bridge, which in turn caused people on the bridge to sway in step, increasing the amplitude of the bridge oscillations and continually reinforcing the effect. On the day of opening, the bridge was crossed by 90,000 people, with up to 2,000 on the bridge at any one time. Resonant vibrational modes due to vertical loads (such as trains, traffic, pedestrians) and wind loads are well understood in bridge design. In the case of the Millennium Bridge, because the lateral motion caused the pedestrians loading the bridge to directly participate with the bridge,
The London Bridge Experience and cost in the region of £2,000,000 to develop. On October 31, 2007, before it opened, the BBC reported that a collection of skeletons unearthed in the crypt had scared builders so much that they refused to work alone. Guests are led by actors on a tour through the 'dark' moments of London's history, which include Boudiccia's battles with the Romans, The Great Fire of London and a medieval encounter with Vikings. It explains the history of all the bridges that have been on the site: the first military style pontoon bridge built by the Romans, the first stone bridge