The document provides information about Tower Bridge in London, including its history, construction details, and dimensions. A special committee was formed in 1876 to address river crossings and a design competition was held. Horace Jones won and construction of the bridge lasted from 1886-1894, costing around $3 million. The bridge allows vehicles and boats to pass through and can open and close in 5 minutes using two 1,000 ton hydraulic bascules.