Suggestions

• What is the ISBN of the book 'Labyrinth: A Journey Through London's Underground'?

• Where have stone labyrinths been preserved near the White Sea?

• What is the significance of the double axe motif in the labyrinth?

• Where do many Roman and Christian labyrinths appear?

• What is the purpose of prehistoric labyrinths?

• What is the etymology of the word 'labyrinth'?

• When were the enamel plaques of unicursal labyrinth designs installed in the London Underground?

• Who was inspired by the idea of the labyrinth in his short stories?