Diocletian's Cellars - Image 1

Split,Croatia

Diocletian's Cellars

Archaeological SiteUNESCOOpenRoman ImperialLate Antiquity

The Cellars of Diocletian's Palace, located in Split, Croatia, constitute one of the best-preserved ancient Roman subterranean complexes in the world. Constructed as the substructure for the Emperor's private residential quarters, the cellars were designed to level the sloping terrain of the peninsula, effectively elevating the imperial apartments above the ground floor.

Following the abandonment of the palace as an imperial residence, the cellars were used for storage and later as a foundation for medieval housing built directly above them. Their structural integrity and historical preservation provide a rare, accurate floor plan of the original imperial apartments that once stood above, making them a critical site for understanding Roman domestic architecture.

Key Facts

Materials
Limestone, Brick, Mortar
Civilization
Roman
Accessibility
Partially accessible; uneven stone flooring
Date(s)
295-305 CE
Condition
Well-preserved, accessible archaeological site
Original Function
Substructure for imperial residential apartments
Key Figures
Emperor Diocletian

Construction and Design

295-305 CE

Built as the foundation for the southern part of Diocletian's Palace, the cellars mirrored the layout of the imperial apartments above. The massive vaulted chambers were constructed to support the weight of the palace while providing storage space for the imperial household.

Medieval Transformation

7th-15th century

After the fall of the Roman Empire, the palace was repurposed. The cellars were used as a dump for the inhabitants of the medieval city that grew within the palace walls, which paradoxically protected the structure from further erosion and human interference.

Excavation and Modern Use

19th century - present

Systematic clearing of the cellars began in the 19th century, revealing the original Roman floor plan. Today, the space serves as a museum and a venue for cultural events, exhibitions, and film productions.

Cultural Significance

The cellars are central to the identity of Split, serving as the physical foundation upon which the city's historic core was built. They represent the transition from Roman imperial power to the medieval urban development of the Dalmatian coast, illustrating how ancient infrastructure was adapted for continuous human habitation.

Interpretive Notes

Scholarly debates and areas of uncertainty

There is ongoing discussion regarding the specific usage of the individual chambers. While traditionally identified as storage areas, some scholars suggest certain rooms may have served as auxiliary service quarters or even temporary holding areas for the imperial staff.

Visiting Information

Entry Rules

Open daily. Tickets are required for entry. Visitors are advised to wear comfortable footwear due to uneven stone surfaces.

Best Times to Visit

Early morning or late afternoon to avoid peak cruise ship crowds. The interior remains cool, making it a suitable visit during hot summer months.

Photography

Personal photography is permitted. Tripods and professional lighting equipment require prior authorization from the Split City Museum.

Preservation Notes

The site is sensitive to humidity and temperature changes. Visitors are requested not to touch the walls or climb on archaeological remains.

Nearby POIs

11 shown

Sources & Further Reading

  1. [1]
    Diocletian's Palace: The Substructures — Joško Belamarić. Institute of Art History, Zagreb (2012)
  2. [2]
    The Palace of Diocletian at Split — Sheila McNally. University of Minnesota Press (1996)