Under an otherwise unremarkable office block in the City can be found one of London’s largest visible Roman ruins. Visible very rarely though, as it’s behind locked doors.
The remains were first discovered in 1848 and more fully revealed in several additional phases of excavation, showing a modest bath house preserved within the courtyard of a much larger structure, possibly an inn.
Since then, apart from occasional open days, they have remained a sealed off hidden marvel of Roman London.
Starting from late August though, access will be more frequent, as the Museum of London will be hosting tours every weekend until the end of this year.
I took a look around on one of its rare open days back in 2011.
Tickets for a 45 minute visit cost £8 per person, and can be booked here.
Be aware that this site is not accessible for wheelchair users.