This is alist of monoliths organized according to the size of the largest block of stone on the site. Amonolith is a large stone which has been used to build a structure or monument, either alone or together with other stones. In this list at least one colossal stone over ten tons has been moved to create the structure or monument.
This article also includes a list of modernexperimental archaeology efforts to move colossal stones using technologies available to the respective ancient civilizations.
Most of these weights are based on estimates by published scholars; however, there have been numerous false estimates of many of these stones presented as fact. To help recognize exaggerations, an introductory description shows how to calculate the weight of colossal stones from first principles.
The 53.3 t heavycapital block (the rectangular platform fitted with a railing) ofTrajan's Column inRome, Italy, was lifted byRoman cranes to a record height of about 34 m
The stelae were moved about 2.6 miles (4.2 km).[14] King Ezana's stele and the "Obelisk" of Axum were among seven such monuments set up in Axum in the 4th century AD. The Great Stele was never successfully erected and broke into pieces at its present site.
Herod, King ofJudea during the Second Temple period
Weight is disputed; a 2006 analysis estimated the depth of this stone at only 1.8–2.5 m, for a weight of 250–300 t.[20] Weight formerly said to be 550 to 600 t.[22][23]
Pyramid ofNyuserre Ini. 12 megalithic limestone beams 10 meters long weighing 90 tons each, forming the roof of burial chamber and antechamber.[41]
Moai atEaster Island. Largest moai 70 to 86 tons. The tallest one, Paro, was moved 3.75 miles (6.04 km).[42]
Great Pyramid of Giza, Egypt. Largest slabs on burial chamber, 80 tons. The granite was transported 580 miles (930 km) from Aswan by barge on the Nile river.[36]
Karnak, Egypt. Obelisk, 328 tons. Largest architraves, 70 tons. Sandstone transported fromGebel Silsila 100 miles (160 km).[43][44]
Pantheon, Rome, Italy. Granite columns, 39 feet (11.8 m) tall, five feet (1.5 m) in diameter, and 60 tons in weight were transported from Egypt by barge.[36][47]
Olmec heads, Mexico, gulf coast. LargestOlmec head, almost 50 tons. Transported 37 to 62 miles (100 km).[36]
Ħaġar Qim, one of theMegalithic Temples of Malta. Its largest stone weighs 57 tons and measures approximately 19 feet (5.8 m) long by 9 feet (2.7 m) tall by 2 feet (0.61 m) thick.[48] The Maltese temples are the oldest free-standing structures on Earth.[49]
Ashoka Pillars, weighing up to about 50 tons, were transported throughout India to territory ruled byAshoka.[50]
Göbekli Tepe, Turkey. Megaliths from 10 to a 50-ton pillar still in its quarry[51] transported up to a 1/4 mile.[52]
Stonehenge, England. Largest stones over 40 tons were moved 18 miles (29 km); smaller bluestones up to 5 tons were moved 130 miles (210 km).[36]
Trajan's column Rome, Italy. Forty-ton drums. The capital block of Trajan's Column weighs 53.3 tons.[53]
Rameses IV reopened the stone quarries ofWadi Hammamat and had stones dragged 60 miles (97 km) across land to the Nile, then freighted on barges to temples and his tomb in Thebes. Some of these weighed over 40 tons.[54]
Nineveh, Iraq. Largest colossal bulls, 30 tons each, were transported 30 miles (48 km) from quarries at Balatai, then lifted 65 feet (20 m) once they arrived at the site.[36]
Lifted in upright position originally in 15th century BC as a pair outside the temple of Amun atKarnak, Thebes; both subsequently shipped to Alexandria in the 4th century AD – one then shipped to Rome and erected in 357 AD byConstantius II and the other to Constantinople and installed in 390 AD byTheodosius I. Both partly broken, now 32.18m (Rome) and 19.6m (Istanbul) high.
Column shaft 20.75 m long, of pink granite (lapis syeneites) quarried in Aswan. Erected 298–303 AD and crowned with a grey granite Corinthian capital and 7 m-tall statue in porphyry.
The stelae were moved about 2.6 miles (4.2 km) from their quarries.[14] They were the largest Axumite stelae to survive installation; larger attempts failed. The "Obelisk" of Axum was removed from a standing position in 1937, cut into five pieces, and taken to Rome to be re-erected. It was again set up in Ethiopia at its original location in 2005.
Roman column monuments likeTrajan's Column, though not often themselves monolithic, were built using very large sculpted stone blocks, stacked atop one another using cranes andlewises. The capital block of the column was usually even larger and heavier than the column drums. The columns ofMarcus Aurelius,Antoninus Pius, andConstantine, and the lost columns ofTheodosius,Arcadius, andLeo were all constructed in this way, on monumental pedestals and crowned with colossal statues. A few were monoliths, including theColumn of Diocletian in Alexandria, called "Pompey's Pillar", the "Column of the Goths" and the Column ofMarcian in Constantinople, and the lostColumn of Antoninus Pius in Rome.
These are listed with the largest experiments first; for additional details of most experiments see related pages.
Marinos Carburis, a Greek lieutenant-colonel in the Russian Army, organized the move of an enormous boulder called the Thunder Stone (Russian, Гром-Камень) from the Gulf of Finland in 1768 toSaint Petersburg,Russia for the purpose of using it as a pedestal for theBronze Horseman statue. The mass of the Thunder Stone has been estimated to be around 1500 tons. This was done by rolling it on bronze ball bearings on a track. It took an estimated 400 men nine months to move it.[71]
In 1997, Julian Richards teamed up with Mark Witby and Roger Hopkins to conduct several experiments to replicate the construction atStonehenge for NOVA'sSecrets of Lost Empires mini-series. They initially failed to tow a 40-ton monolith with 130 men but after adding additional men towing as well as some men using levers to prod the megalith forward, they succeeded in inching it forward a small distance.[72]
Roger Hopkins and Mark Lehner teamed up with a NOVA crew to conduct anobelisk-erecting experiment; they successfully erected a 25-ton obelisk in 1999. They also managed to tow it a short distance.[73][74][75]
Thor Heyerdahl organized an effort to pull a 10-tonMoai on a sledge with a group of 180 men. This effort used 18 men per ton. He also conducted an experiment to erect a 10-ton Moai successfully. This experiment also shows the same methods could be used to lift a megalith of that size onto a sledge; most other experiments to move them on sledges failed to explain how they got them on the sledge, and one organized byJo Anne Van Tilburg, even showed them using a crane to get it on the sledge.[76][77][78]
Charles Love experimented with a 10-ton replica of a Moai onEaster Island. His first experiment found rocking the statue to walk it was too unstable over more than a few hundred yards. He then found that by placing the statue upright on two sled runners atop log rollers, 25 men were able to move the statue 150 feet (46 m) in two minutes. This effort used 2.5 men per ton.[79]
Austen Henry Layard organized an effort to transport two 10-ton colossal statues of a winged lion and a winged bull with a group of 300 men in 1847. He loaded them on a wheeled cart and towed them fromNimrud to the river and loaded on a barge, where it was sent to London. This effort used 30 men per ton.[80]
Paul Emile Botta and Victor Place attempted to move two additional 30-ton colossi to Paris fromKhorsabad in 1853. To facilitate their shipment to Paris, they were sawn in pieces, but were still too heavy for the methods employed. One of the pieces fell into theTigris River, never to be retrieved. The other made it to Paris.[80]
Giovanni Battista Belzoni organized an effort to pull a 7.5-ton fragment of a statue of Ramses on rollers with a group of 130 men in 1815. This statue was towed to the river and loaded on a barge, where it was sent to London. Progress increased with practice as they went along. This effort used 17 or 18 men per ton.[81]
Henri Chevrier organized an effort to pull a 6-ton block on a sledge with a group of six men. This effort used 1 man per ton.[82] Other reports claim that Chevier's experiment required 3 men per ton.[83]
Josh Bernstein andJulian Richards organized an effort to pull a 2-ton stone on wooden tracks with a group of about 16 men. This effort used 8 men per ton.[84]
Mark Lehner and NOVA organized an experiment to tow stones and to build a pyramid 9 meters wide by 9 meters deep by 6 meters high. They were able to tow a 2-ton block on a sledge across wood tracks with 12 to 20 men. This effort used 6 to 10 men per ton. The pyramid was 54 cubic meters total estimated weight 135 tons. It was built out of 186 stones. The average weight of each stone was almost 1,500 lb (680 kg) (.75 tons). They found that four or five men could use levers to flip stones less than a ton and roll them to transport them. 44 men took 22 days to complete the pyramid, including the carving of the stones. However, they used iron to carve the stones, which was not widely used in Ancient Egypt; copper was typically used. They also used a modern front end loader to accelerate the work on the lower courses. They were unable to use the front end loader to install the capstone, since it was too high; they had to use levers to raise it to 20 feet (6.1 m).[85]
In a 2001 exercise, an attempt was made to transport a large stone along a land and sea route from Wales toStonehenge. Volunteers pulled it for some miles (with great difficulty) on a wooden sledge over land, using modern roads and low-friction netting to assist sliding, but once transferred to a replica prehistoric boat, the stone sank inMilford Haven before it even reached the rough seas of theBristol Channel.[86]
In the cases of smaller monoliths it may be possible to weigh them. However, in most cases monoliths are too large or they may be part of an ancient structure so this method cannot be used. Theweight of a stone can be calculated by multiplying itsvolume anddensity. Each of these presents challenges.
To obtain accurate estimates, one needs to survey the monolith, including realistic and explicit assessment of the shapes of inaccessible portions, and then calculate the volume and estimate volumetric errors, which vary crudely as the cube of linear uncertainties.
The density of most stone is between 2 and 3 tons per cubic meter.Basalt weighs about 2.8 to 3.0 tons per cubic meter;granite averages about 2.75 metric tons per cubic meter;limestone, 2.7 metric tons per cubic meter;sandstone ormarble, 2.5 tons per cubic meter.[88][89][90][91][92] Some softer stones may be lighter than 2 tons per cubic meter; for example, volcanictuff or some types of sandstone weigh about 1.9 tons per cubic meter.[93][94][95] Since the density of most of these stones varies, it is necessary to know the source of the stone to obtain accurate measurements.[96][97] Identifying the rock type alone is not sufficient, as this table[98] illustrates:
Simply identifying the monolith as sandstone would allow a ± 15% uncertainty in the weight estimate.In practice, one would measure the density of the monolith itself, and preferably document any variation in density within the monolith, as it may not be homogeneous. Non-destructive methods of density measurements are available (e.g., electron back-scatter); alternatively, the site may contain already-separated fragments of the monolith which can be used for laboratory measurements or on-site techniques. At the crudest, a weighing device and a bucket can obtain two significant figures for a density value.
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^Lynne Lancaster,"Building Trajan's Column," American Journal of Archaeology, Vol. 103, No. 3. (Jul. 1999) p. 426
^Time Life Lost Civilizations series: Ramses II: Magnificence on the Nile (1993) p. 133
^Time Life Lost Civilizations series: Mesopotamia: The Mighty Kings pp. 118–119
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