Warning. This is not a joke. I repeat – this is not a joke. Colosseum (Rome) • Built 72–80 AD (8 years) • No mixers, cranes, electricity, or Jira • Features: seats 50–65k; advanced engineering, animal lifts, drainage, and 2,000-year concrete IKEA Auckland (Sylvia Park) • Announced ~2016 • Built with approvals/delays; opened 2025 (9 years) • Features: IKEA stuff
