Tower Bridge

Tower Bridge isn't just a river crossing-it's a working piece of Victorian machinery that still operates exactly as designed in 1894. The bascules lift about 800 times per year, and when they do, you're watching the same counterweight system that's been raising this bridge for 130 years. The glass floor walkways, added in 2014, give you a direct view down to the Thames 42 meters below, while the original Victorian Engine Rooms house the massive steam engines that powered the bridge until 1976.

Your visit starts in the North Tower with a brief exhibition before climbing to the high-level walkways that connect both towers. The glass panels are genuinely thrilling-much more so than similar attractions elsewhere. The engine rooms, accessed separately, showcase the original coal-fired boilers and steam engines with detailed explanations of the lifting mechanism. Staff are knowledgeable about the engineering and often share stories about famous bridge lifts.

The £12 adult ticket is steep for what amounts to great views and some industrial history. Skip the exhibition upstairs-it's mostly generic London content. The real value is the glass floor experience and the engine rooms, which most people rush through but contain the most fascinating technical details. Go early to avoid school groups, and don't bother with the photo opportunities-they're overpriced tourist traps.