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Roman Temple Dedicated to Mars Unearthed Beneath Forest Floor Near Frankfurt

cultural-heritage · 2026-10-08

On September 25, the Hesse State Office for Monument Preservation revealed the discovery of a Roman temple, likely dedicated to Mars, in the eastern Taunus Mountains close to Frankfurt. This rectangular structure, measuring 16 feet in length, features a square inner chamber with robust walls, suggesting it served as an ambulatory temple. An inscription refers to Mars, and there is a fragment of a statue that may represent him, along with a statuette of Victoria. The temple was unearthed during excavations at the Kapersburg fort, a Roman military site from the second century C.E., established under either Emperor Trajan or Hadrian. This fort accommodated the Numerus Nidensium unit for approximately 150 years until the mid-third century C.E. The location is part of the Upper Germanic-Rhaetian Limes, recognized as a UNESCO World Heritage site since 2005.

Key facts

  • A Roman temple likely dedicated to Mars was discovered just beneath the forest floor in the eastern Taunus Mountains near Frankfurt, Germany.
  • The rectangular temple measures about 16 feet long and contains a square inner chamber with three roughly 20-inch-thick walls.
  • An inscription suggests the temple was dedicated to Mars, and a statue fragment may depict the war god.
  • A broken statuette clearly bears Victoria's attributes: wings, a palm branch, and a laurel wreath.
  • The temple was found during excavations of the Kapersburg fort, a second-century C.E. Roman military fortification, and its adjacent vicus.
  • The fort was likely built under Emperor Trajan or Hadrian and was occupied by the Numerus Nidensium for about 150 years until abandonment in the mid-third century C.E.
  • The site is part of the Upper Germanic-Rhaetian Limes, a 342-mile stretch between the Rhine and Danube rivers that became a UNESCO World Heritage site in 2005.
  • This year, researchers also found blacksmith pits and baking ovens, possibly for drying grain, but fewer houses than expected.

Entities

Artists

  • Lars Görze
  • Thomas Kurella
  • Kristina Killgrove
  • Sarah Kuta
  • Trajan
  • Hadrian

Institutions

  • Hesse State Office for Monument Preservation
  • Live Science
  • Hessenschau
  • UNESCO
  • Numerus Nidensium
  • Smithsonian Magazine

Locations

  • Germany
  • Frankfurt
  • Taunus Mountains
  • Kapersburg fort
  • Nida
  • Heddernheim
  • Rhine
  • Danube
  • Rosbach vor der Höhe
  • Upper Germanic-Rhaetian Limes

Sources