The Baron is obsessed with building a new cathedral in Hamelin, facing his castle. This is not so much a monument to the glory of God as a further expression of his power and his preening ego. The Bishop is obviously keen to encourage this, as it would enhance his own prestige. But he is aware that the mad Baron has no practical idea of the costs involved, and the Burgermeister and his guild heads have already taxed every possible local resource. The half-built cathedral façade, with its idle workers and wooden winches and scaffolding, is like an unfinished set. It could perhaps be seen as an admission of budgetary limitations, or as a pointed rejection of Hollywood historical spectacle.

The economic exhaustion which the extravagant fancies of the Baron has created has hints of the 70s downturn (although the ’73 OPEC oil hike had yet to make its devastating impact), with images of builders sitting disconsolately inactive about the site striking a resonant note. The rising towers of the cathedral could also be seen as a reflection on the greed of property speculators in the 60s and 70s, erecting grandiose buildings in prime locations and then letting them lie empty for years while they waited for rents to rise, and for sufficiently wealthy tenants to move in.

The high-rise modernist office block Centre Point, in the heart of London, was one of the most notorious cases. It lay empty for some 5 years after its completion in 1967 at a time when unemployment and homelessness were rising steeply. The cathedral is only ever seen in the form of its architectural model, or as an elaborate cake produced for Franz’s wedding, another sign of its cynically political provenance. The cake’s delicately iced rose windows and arched doors are shattered by the rats which emerge from within, causing the whole structure to collapse in a symbolic rubble of crumbs and sugary dust.