Catacombs of London

The city of London, England, has several catacomb spaces, although the high water table limits subterranean construction.

Its catacombs, opened in 1837, were built below chapels and included a group of 95 vaults with private and shared loculi with a capacity of 3,500 coffins.

Highgate Cemetery is unique in that its "Terrace Catacombs" are built into the slope of a hill and accessed at ground level.

Situated at the summit of the Cemetery, it houses 825 loculi under a long observation terrace on which asphalt was laid, one of the first examples of its use for this purpose in England.

Although the space was once open to the public as a minor tourist attraction, it is now only accessible to film crews and the occasional private event.