Dante Alighieri | Dante | Dante Gabriel Rossetti | Joe Dante | Livio Dante Porta | Inferno (Dante) | Dante's Peak | Dante's Inferno | Dante's Cove | Dante Marioni | Silvio Dante | Ron Dante | Michael Dante | Khimiya i Zhizn – XXI Vek | Dante Rivero | XXI Bomber Command | Pope John XXI | Paradiso (Dante) | Gene Dante and The Future Starlets | Fokker D.XXI | Dante's Inferno (video game) | Dante Silverio | Dante's | Dante Love | Dante Lam | Dante Basco | Dante Alighieri's | XXI Corps (United States) | XXI Corps (United Kingdom) | XXI Corps (German Empire) |
Although the album was inspired by the 1927 film Metropolis, it is not intended to be a concept album, unlike two of the band's previous studio albums, Dante XXI (based on Dante Alighieri's The Divine Comedy) and A-Lex (based on the 1962 book A Clockwork Orange by Anthony Burgess).