
Photo by Charles Postiaux on Unsplash
Tower Bridge is one of London’s most recognisable landmarks, spanning the River Thames near the Tower of London. Completed in 1894 after eight years of construction, the bridge combines elements of a suspension and bascule bridge—its roadways can pivot upwards to allow ships to pass. The design, approved in 1884, was created by architect Sir Horace Jones and engineered by Sir John Wolfe Barry. Beneath its Gothic Revival façade lies a solid steel frame, reflecting the engineering innovation of the time.
The bridge’s central span is 66 metres long and was originally raised by steam-powered hydraulic machinery, a system in use until 1976 when it was replaced by electricity and oil hydraulics. Tower Bridge still opens regularly for river traffic; lift times are published on the official website.
Today, Tower Bridge is both a working part of London’s infrastructure and a visitor attraction. The high-level walkways and the Tower Bridge Exhibition offer views across the Thames and insights into the bridge’s construction and operation. It remains a symbol of Victorian engineering, balancing functionality with the architectural grandeur of its time.
Tower Bridge is open to visitors daily from 09:30 to 18:00, with last entry at 17:00. Entry begins at the North Tower, leading across the high-level Walkways with panoramic views, down through the South Tower, and into the historic Engine Rooms. Standard adult admission is £16, with half-price tickets for children aged 5–15. Guided tours are available and accessibility is a key priority: the site offers lift access throughout, as well as deaf-led and British Sign Language tours, and occasional relaxed openings. Tickets and details on tour times can be found on the official Tower Bridge website.
Type:Bridge
Visitability:Visitable
Address:Tower Bridge Rd, London SE1 2UP
Website:Visit

Photo by Sian Bentley-Magee on Unsplash
Windermere Wastewater Treatment Works treats local sewage using sedimentation, activated sludge, and sludge digestion, forming part of a £200 million upgrade to protect the lake. United Utilities offers 90‑minute guided tours for small groups (age 9+), providing PPE and expert insight into treatment stages, environmental safeguards, and future filtration innovations.

Photo by Sian Bentley-Magee on Unsplash
Beckton Sewage Treatment Works is one of Europe’s largest wastewater facilities, serving over four million people in London. Operational since 1864, it now includes advanced treatment systems, sludge-to-energy generation, and infrastructure for the Thames Tideway Tunnel. Occasional guided tours offer insight into its role in urban sanitation and renewable energy.

David Samuel, User:Hellodavey1902, CC BY-SA 3.0, via Wikimedia Commons
Battersea Power Station, once the world’s largest brick building, supplied mid‑20th‑century London with electricity. Its Art Deco interiors and four chimneys remain central to the 2022 redevelopment into a mixed‑use complex. Guided tours explore restored Control Rooms and turbine halls, offering a striking example of industrial heritage conservation.