TARDIS were not, its weight would shatter the Earth's surface. In the tie-in novels, the interior of the TARDIS has been known to contain an entire city, encompass an entire parallel Earth, and even dwarf Gallifrey itself when turned inside out. A distinctive architectural feature of the TARDIS interior is the roundel. In the context of the TARDIS, a roundel is a circular decoration that adorns the walls of the rooms and corridors of the TARDIS, including the console room. Some roundels conceal TARDIS circuitry and devices, as seen in the serials "The Wheel in Space" (1968), "Logopolis", "Castrovalva" (1981), "Arc
Capesthorne Hall staircase has a wrought iron balustrade decorated with acanthus and roundels with the crests of the Bromleys and the Davenports. The Davenport crest consists of a felon with a rope around his neck; in these roundels the felon has the face of William Gladstone, a political opponent of the Davenports. There are four further ground floor rooms, all by Salvin. The Library has a panelled ceiling with diamond motifs. It contains imitation Jacobean panelling and a Jacobean fireplace from the now-demolished Marton Hall. The Study also has a panelled ceiling, and in this case includes a circular central motif. The