Reading Time: 2 minutes…designed by Joseph Bonomi the Younger and built by John Marshall between 1836 and 1840, it boasts a two acre main space, and apparently is pretty unique (at least for the time) in that it is held up under both compression and tension.

On the tour, in the main room we we hard-hatted and required to walk to a ‘safe area’ without stopping, just in case anything fell…