The Pantheon in Rome. Largest dome in the world for more than 1,300 years.
Oculus of the Pantheon

This is a list of Roman domes. The Romans were the first builders in the history of architecture to realize the potential of domes for the creation of large and well-defined interior spaces.[1] Domes were introduced in a number of Roman building types such as temples, thermae, palaces, mausolea and later also churches. Semi-domes also became a favoured architectural element and were adopted as apses in Christian church architecture.[2]

Monumental domes began to appear in the 1st century BC in Rome and the provinces around the Mediterranean Sea. Along with vaults and trusses, they gradually replaced the traditional post and lintel construction which makes use of the column and architrave. The construction of domes was greatly facilitated by the invention of concrete, a process which has been termed the Roman Architectural Revolution.[3] Their enormous dimensions remained unsurpassed until the introduction of structural steel frames in the late 19th century (see List of largest domes).[1][4][5]

Domes

All diameters are clear span in m; for polygonal domes applies to the in-circle diameter. Main source is Jürgen Rasch's study of Roman domes (1985).

Diameter ⌀
(m) 		Name,
Part 		Location Built Shape of dome,
Ground plan 		Material,
Roof construction 		Shell
Thickness ST 
(m)
ST to ⌀ 		Curtain Wall
Thickness CWT 
(m)
CWT to ⌀ 		Diameter Oculus DO
(m)
DO to ⌀ 		Comments/
Other Characteristics
~ 43.45 [6] Pantheon Rome ~ 126 AD Rotunda Concrete,
Lead plate roofing 		~ 1.35
~ 1:32 		~ 5.93
~ 1:7.3 		~ 8.95
~ 1:4.9 		Largest dome of the world until 1881; largest unreinforced solid concrete dome in the world till present;[7] archetype of Western dome construction to this day[4][8]
~ 38.20 [9] Temple of Apollo Lake Avernus ~ 1st c.
~ 35.08 [5] Baths of Caracalla,
Caldarium 		Rome ~ 3rd c. Amphoras Eight pillars; largest dome of the world out of ceramic hollowware
~ 29.50 [10] Temple of Diana Baiae ~ 2nd c. ~ 1.20
~ 1:25 		~ 5,70 [11]
~ 1:5.2
~ 26.30 [10] Temple of Venus Baiae ~ 2nd c. ~ - ~ 2.90 [12]
~ 1:9.1 		Outer wall pillars
~ 25.04 [13] Mausoleum of Maxentius Rome ~ 4th c. Rotunda
~ 25.00 [14] Baths of Agrippa,
'Arco della Ciambella' 		Rome ~ 1st c. BC Rotunda First Thermae in Rome with central dome;[14] largest dome of the world
~ 24.15 [10] Arch of Galerius and Rotunda Thessaloniki ~ 4th c. Brick ~ 1
~ 1:24 		~ 6.00
~ 1:4 		Largest brick dome of the world
~ 23.85 [10] Sanctuary of Asclepius Pergamon ~ 2nd c. Brick ~ - ~ 3.35
~ 1:7.1 		Earliest monumental brick dome;[15] largest brick dome of the world
~ 23.70 to
~ 19.80 [16] 		St. Gereon's Basilica Cologne ~ 4th c. Oval with eight niches and apse Later medieval structure with Roman building fabric largest occidental dome between Hagia Sophia and Florence Cathedral[17]
~ 23.65 [10] Temple of Minerva Medica Rome ~ 4th c. Decagon Concrete with brick ribs ~ 0.56
~ 1:42 		~ 2.60 [12]
~ 1:9.1 		Outer wall pillars
~ 22.00 [18] Baths of Antoninus Carthage ~ 2nd c. Polygon Seven domes with diameters between 17 and 22 m[18]
~ 22.00 [19] Rotunda at the Hippodrome Constantinople ~ 5th c. Rotunda with ten niches
~ 22.00 [20] Baths of Diocletian,
San Bernardo 		Rome ~ 300 Concrete with brick ribs
~ 21.65 or
~ 21.25 [21][22] 		Baths of Diocletian,
'Planetarium' 		Rome ~ 300 Umbrella dome,
Octagon 		Concrete with inner brick covering ~ 4.20
~ 1:5.1
~ 21.55 [22] Temple of Mercury Baiae ~ 1st c. BC Concrete[23] ~ 3.65
~ 1:5.9 		Earliest monumental dome;[24] largest dome of the world
~ 20.18 [10] Mausoleum of Helena Rome ~ 4th c. Ceramic amphora incorporated into dome's base ~ 0.90
~ 1:22 		~ 2.40
~ 1:8.4
~ 19.80 [21] Baths of Caracalla,
Side building 		Rome ~ 3rd c. Octagon Preliminary form of the pendentive dome[21]
~ 19.40 [21] Baths of Bacucco Near Viterbo ~ 4th c. Umbrella dome,
Octagon
~ 19.30 [22] Baths of Diocletian,
Tepidarium 		Rome ~ 300 ~ 3.68
~ 1:5.2
~ 18.38 [10] Pantheon Ostia ~ 3rd c. ~ - ~ 1.98
~ 1:9.3
~ 18.00 [16] Church of Euphemia Constantinople ~ 5th c. Hexagon
~ 16.75 [25] Hadrian's Villa,
'Serapeum' 		Tivoli ~ 2nd c. Umbrella dome Concrete Hollow space system
~ 16.45 [18] Imperial Baths,
Tepidarium 		Trier ~ 4th c. Concrete
~ 15.70 [18] Basilica of San Vitale Ravenna ~ 6th c. Clay pipe,
Wooden roof construction
~ 15.60 [22] Nymphaeum in Albano Laziale ? ~ 1st c. Concrete ~ 2.08
~ 1:7.6 		Earliest evidence for hollow spaces at dome's base for reduction in weight[26]
~ 15.00 to
~ 13.00 [15] 		Southern baths Bosra ~ 3rd-4th c. Octagon Concrete
~ 15.00 [16] Western baths Jerash ~ 2nd c. Square Voussoir One of the earliest stone domes with square plan;[16] largest stone dome of the world
~ 14.70 [10] Heroon of Romulus at the Roman Forum Rome ~ 4th c. Lead plate roofing ~ 0.90
~ 1:16 		~ 1.80
~ 1:8.2 		~ 3,70
~ 1:4.0
~ 14.50 [10] Temple of Portunus Porto ~ 3rd c. Concrete with inner brick covering ~ - ~ 2.20
~ 1:6.6
~ 13.71 [10] Mausoleum of Tor de' Schiavi Via Prenestina ~ 4th c. ~ 0.60
~ 1:23 		~ 2.60
~ 1:5.3 		Four openings at dome's base
~ 13.48 [24] Domus Aurea Rome ~ 1st c. Cloister vault,
Octagon 		Concrete ~ 5.99
~ 1:2.3 		First dome with octagonal plan; earliest in palace architecture[24]
~ 13.35 [10] Mausoleum of Diocletian Split ~ 300 Brick,
Tiled roof 		~ 0.68
~ 1:20 		~ 3.40 [11]
~ 1:3.9 		Double-walled dome[13]
~ 12.90 [13] Chapel of Saint Aquilino Milan ~ 4th c. Brick
~ 12.33 [27] Tempio della Tosse Tivoli ~ 4th c. Concrete with brick ribs ~ 1.30
~ 1:9 		~ 2.08
~ 1:5.9 		~ 2.10
~ 1:5.9
~ 12.00 [20] Hadrian's Villa,
Summer Triclinium (Exedra) 		Tivoli ~ 2nd c. Concrete with inner brick covering
~ 12.00 [18] Baths of Aquae Flavianae El Hammam ~ 3rd c. Clay pipes Largest dome of the world out of ceramic hollowware
~ 12.00 [16] Church of Hodegetria Constantinople ~ 5th c. Hexagon
~ 12.00 [16] Skeuophylakion Constantinople ~ 5th c. Dodecagon
~ 11.90 [10] Baptistery Nocera Superiore
Campania 		~ 6th c. Eight rectangular dome windows
~ 11.90 [28] Hadrian's Villa,
'Heliocaminus' 		Tivoli ~ 2nd c. Double-walled dome with spacing for ceiling heating[28]
~ 11.50 [29] Red Basilica Pergamon ~ 2nd c. Brick Two Rotunda; largest brick dome of the world
~ 11.50 [27] Santa Costanza Rome ~ 4th c. Concrete with brick ribs,
Tiled roof directly resting on dome shell 		~ 0.70
~ 1:16 		~ 1.45
~ 1:7.9 		Tambour[30]
~ 11.50 [16] Mor Gabriel Monastery Tur Abdin ~ 6th c. Brick ~ yes
~ 11.47 [27] Praetorium Cologne ~ 4th c. Octagon ~ - ~ 2.00 [11]
~ 1:5.7
~ 11.10 [27] Gordian's Villa Rome,
Via Prenestina 		~ 3rd c. Octagon ~ - ~ 1.35 [11]
~ 1:8.2 		Preliminary form of the pendentive dome;[21] eight openings at dome's base
~ 11.00 [5] Therme d’Allance ? ~ ?
~ 10.80 [27] Mausoleum of Gallien Rome,
Via Appia 		~ 3rd c. Rotunda with six niches ~ - ~ 1.60
~ 1:6.8
~ 10.70 [27] Mausoleum of Centocelle Centcelles,
near Tarragona 		~ 4th c. Brick and stone ~ 0.40
~ 1:27 		~ 1.90
~ 1:5.6
~ 10.40 to
1~ 9.40 [25] 		Hadrian's Villa,
small baths 		Tivoli ~ 2nd c. Elliptical dome with wavelike rim
~ 10.00 [25] Gordian's Villa,
Hall 		Via Prenestina ~ 2nd c.
~ 10.00 [26] Villa delle Vignacce Via Latina ~ 2nd c. Ceramic amphora at dome's base Earliest known use of amphora at dome's base[26]
~ 19.85 [18] Cathedral,
Baptistery 		Ravenna ~ 5th c.
~ 19.50 [31] Rotunda of St. George, Sofia Sofia ~early 4th c. Rotunda Built by the Romans in the 4th century, it is a cylindrical domed structure built on a square base.
1~ 9.50 [21] Hadrian's Villa,
Piazza d'Oro (vestibule) 		Tivoli ~ 2nd c. Umbrella dome ~ 1,90
~ 1:5.0
1~ 9.50 [19] Praetextat catacomb,
'Calventier tomb' 		Rome ~ 3rd c. Rotunda with six niches
1~ 9.00 [15] Capito Thermae,
Laconicum 		Miletus ~ 1st c. Concrete
1~ 9.00 [16] Small Roundtemple Baalbek ~ 3rd c.
1~ 8.50 [19] Domus Augustana Rome ~ 1st c. Cloister vault,
Octagon 		One of the earliest cloister vaults with octagonal curtain walls[19]
~ 18.10 [27] Torraccio del Palombaro Rome,
Via Appia 		~ 4th c. ~ 0.90
~ 1:9 		~ 2,30
~ 1:3.5 		~ 1.50
~ 1:5.4
1~ 7.70 [21] Baths of Maxentius Rome ~ 4th c. Umbrella dome,
Octagon
~ 17.60 [5] Domus Flavia Rome ~ 1st c.
1~ 7.60 to
1~ 6.20 [19] 		Hadrian's Villa,
'Heliocaminus' 		? ~ 2nd c. Cloister vault,
Uneven octagon
1~ 6.80 [16] Nymphaeum Riza,
Epirus 		~ 250-350 Dodecagon
1~ 6.75 [21] Temple of Venus,
Annex building 		Baiae ~ 2nd c. Flat umbrella dome,
Octagon
~ 16.65 [22] Hall of Thermae Pisa ? ~ 2nd c. Cloister vault with eight windows,
Octagon 		~ 2.00
~ 1:3.3
~ 16.52 [24] Stabian Thermae,
Laconicum 		Pompeii ~ 1st c. BC Cone vault (early form of the dome) Concrete ~ yes Oldest known concrete domes[24]
1~ 6.00 [18] Hunting Thermae Leptis Magna ~ 200 Cloister vault with eight windows
~ 15.86 [18] Arch of Marcus Aurelius Tripoli ~ ? Cloister vault Voussoir
1~ 5.70 [10] Water Castellum Pompeii ~30 BC-
~14 AD 		Flat dome
~ 15.40 [21] Octagon near 'Temple of Mercury' Baiae ~ 2nd c. Umbrella dome,
Octagon
1~ 5.40 [13] San Vitale,
Stair towers 		Ravenna ~ 6th c. Brick
~ 15.20 [16] Sedia del Diavolo,
Tomb 		Rome,
Via Nomentana 		~ 2nd c. Square
1~ 4.70 [19] Tabularium Rome ~ 1st c. BC Cloister vault,
Square 		Earliest cloister vault[16]
~ 14.41 [25] Temple of Venus,
Annex building 		Baiae ~ 2nd c. Umbrella dome above circular ground plan ~ 0.59
~ 1:7.5
1~ 4.40 [32] Mausoleum of Galla Placidia Ravenna ~ 5th c. Tiled roof
1~ 4.00 [10] Tomb at Casal de' Pazzi Rome,
Via Nomentana 		~ 2nd c. In-circle dome,
Square 		Concrete Preform of pendentive dome;[10] hollow space system
~ 11.65 [24] Villa of the Mysteries,
Laconicum 		Pompeii ~ 1st c. BC Cone vault (early form of the dome) Brick and clay (upper calotte) Concrete wall shell[33]
~ ? [19] Mausoleum of Constantine at the Church of the Holy Apostles Constantinople ~ 4th c. Presumably Rotunda with twelve niches

Half-domes

Diameter ⌀ Name,
Part 		Location Built Shape of dome,
Ground plan 		Material,
Roof construction 		Shell
thickness (ST)
ST to ⌀ 		Curtain wall
thickness (CWT)
CWT to ⌀ 		Comments/
Other characteristics
~ 30.00 [6] Baths of Trajan Rome ~ ? Largest dome(s) of the world
~ 22.00 [6] Baths of Diocletian,
Two apse halls 		Rome ~ 300
~ 18.50 [6] Trajan's Forum Rome ~ ?
~ 15.80 [18] Santi Cosma e Damiano],
Apse 		Rome ~ 6th c.
~ 11.00 [15] Nymphaeum Jerash ~ 2nd c. Concrete
1~ 9.60 [15] Basilica,
Apse 		Bostra ~ 3rd c. Concrete, inside covered with ashlar
1~ 8.00 [15] Cathedral,
Annex rooms 		Bostra ~ 6th c. Concrete
1~ 5.70 [13] Pantheon,
Front niches 		Rome ~ 2nd c.

See also

References

  1. ^ a b Rasch 1985, p. 117
  2. ^ Buildner. "How Roman architecture influenced modern architecture". architecturecompetitions.com. Retrieved 2023-09-06.
  3. ^ Lechtman & Hobbs 1986
  4. ^ a b Mark & Hutchinson 1986, p. 24
  5. ^ a b c d Heinle & Schlaich 1996, p. 27
  6. ^ a b c d Rasch 1985, p. 119
  7. ^ Romanconcrete.com
  8. ^ Müller 2005, p. 253
  9. ^ Bishop 1977, p. 92
  10. ^ a b c d e f g h i j k l m n o Rasch 1985, p. 129
  11. ^ a b c d Corner
  12. ^ a b Pillar
  13. ^ a b c d e Rasch 1985, p. 123
  14. ^ a b Heinz 1983, pp. 60–64
  15. ^ a b c d e f Rasch 1985, p. 125
  16. ^ a b c d e f g h i j k Rasch 1985, p. 126
  17. ^ Schäfke 1985, pp. 100 & 118
  18. ^ a b c d e f g h i Rasch 1985, p. 124
  19. ^ a b c d e f g Rasch 1985, p. 127
  20. ^ a b Rasch 1985, p. 138
  21. ^ a b c d e f g h i Rasch 1985, p. 130
  22. ^ a b c d e Rasch 1985, p. 136
  23. ^ Mark & Hutchinson 1986, p. 33
  24. ^ a b c d e f Rasch 1985, p. 118
  25. ^ a b c d Rasch 1985, p. 133
  26. ^ a b c Rasch 1985, p. 135
  27. ^ a b c d e f g Rasch 1985, p. 128
  28. ^ a b Rasch 1985, p. 139
  29. ^ Rasch 1985, p. 137
  30. ^ Rasch 1985, p. 120
  31. ^ "Rotunda St. George, Sofia City". bulgariatravel.org. Archived from the original on 2014-05-20.
  32. ^ Rasch 1985, p. 134
  33. ^ Rasch 1985, p. 122

Sources

Main source
Further sources

External links

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