The Arch of Constantine in an unconstructable building in Age of Empires II HD: The Forgotten. It has no actual use in-game, it is purely decorative and can only be found in the Scenario Editor. The Arch of Constantine looks almost like the Hunnic Wonder.
- The Arch of Constantine is a large triumphal arch located in Rome, commemorating the eponymous emperor Constantine I's victory over his rival Maxentius in a civil war.
|Unconstructable buildings in Age of Empires II|
|The Age of Kings|
|Cathedral · City Wall · Dome of the Rock · Fortress · Great Pyramid · Mosque · Pavilion · Pyramid · The Accursed Tower · The Tower of Flies · Trade Workshop · Yurt|
|Monument · Sea Gate · Sea Tower · Sea Wall|
|Amphitheatre · Aqueduct · Arch of Constantine · Colosseum · Fire Tower · Fortified Palisade Wall · Gol Gumbaz · Poenari Castle · Quimper Cathedral · Temple of Heaven|
|The African Kingdoms|
|Barricade · Fence · Granary · Hut · Palace · Sea Fortification · Storage · Tent|
|Rise of the Rajas|
|Army Tent · Sanchi Stupa|