Original London Walks

This company was the first to offer walking tours around London, and they're still one of the most popular, thanks to a list of 200 customized walks. Treasure hunts, lectures, Explorer Days out of town, and tours in various languages are available, along with excursions tailored to kids. The information-packed events let you get a closer look at some of London's most historic and interesting structures and attractions. Meeting times vary by tour so check out the website. But you can do Harry Potter tours, a trip to Bletchley park, where the British cracked the Nazi codes in the second world war, and in the autumn, foodie walks will be available. Also, if you like archeology, you can even become a mudlark on the banks of the river thames, and hunt for hidden treasure from Roman times onwards.