London isn’t just about Big Ben and Buckingham Palace; it’s also a treasure trove of lesser-known historical marvels. In this article, we explore hidden ancient sites that often fly under the radar but offer a unique glimpse into the past. From the stone circles outside the city to the remnants of Roman theatres tucked within the urban sprawl, these sites will awe anyone keen on history. Discover practical tips for exploring these locations, including travel advice and local insights, ensuring a fascinating journey through time.