ARTFEED — Contemporary Art Intelligence

Hostile Architecture's Medieval Roots: From Oubliettes to Sidewalk Spikes

architecture-design · 2026-09-03

An article from TheCollector explores the concept of hostile architecture—elements such as armrests on park benches and spikes on sidewalks—tracing its roots to ancient and medieval times. It highlights the Colosseum in Ancient Rome, which enforced social stratification, alongside Roman jostle-stones that altered the path of cart wheels. The piece also discusses medieval oubliettes, derived from the French term 'oublier,' and notes the walled Jewish ghettos in 15th-century Spain, leading to the Edict of 1492. Additionally, it mentions the mid-19th-century urban redesign in Paris aimed at suppressing uprisings and references Robert Caro's 1974 work 'The Power Broker,' which argues that low overpasses in New York City were designed to exclude the less affluent. The article critiques modern hostile architecture and corporate jargon as contemporary forms of exclusion, reminiscent of ancient class divides.

Key facts

  • Hostile architecture includes park bench armrests, sidewalk spikes, and blue-lit public bathrooms.
  • The Colosseum in Rome used tiered seating and restricted entrances to separate social classes.
  • Roman jostle-stones protected buildings from cart wheels and redirected traffic.
  • Medieval oubliettes were cone-shaped prison cells accessed via trapdoors, designed to forget prisoners.
  • In 15th-century Spain, Jewish ghettos were walled, and the Edict of 1492 forced Jews to leave or convert.
  • Paris was redesigned in the mid-19th century with wide boulevards to prevent barricades and insurrection.
  • Robert Caro's 1974 book 'The Power Broker' claims New York overpasses were built low to exclude buses.
  • Modern hostile architecture includes metal studs, sloped benches, and blue lights in bathrooms.

Entities

Institutions

  • TheCollector
  • Wikimedia Commons
  • iStock
  • geograph.co.uk
  • St. Andrew’s Castle
  • Bastille

Locations

  • Rome
  • Italy
  • Spain
  • Paris
  • France
  • New York
  • United States
  • Plandome
  • Stockholm
  • Sweden
  • Pedraza
  • Castilla y Leon

Sources