Composition
Most (95-97%) of the catacombs are former sandstone multilevel mines, from which stone was extracted to construct the city above. The remaining catacombs (3-5%) are either natural cavities, or were excavated for other purposes such as sewerage. As of 2012, there are more than 1000 known entrances to the tunnels.
Read more about this topic: Odessa Catacombs
Famous quotes containing the word composition:
“The naive notion that a mother naturally acquires the complex skills of childrearing simply because she has given birth now seems as absurd to me as enrolling in a nine-month class in composition and imagining that at the end of the course you are now prepared to begin writing War and Peace.”
—Mary Kay Blakely (20th century)
“If I don’t write to empty my mind, I go mad. As to that regular, uninterrupted love of writing ... I do not understand it. I feel it as a torture, which I must get rid of, but never as a pleasure. On the contrary, I think composition a great pain.”
—George Gordon Noel Byron (1788–1824)
“Viewed freely, the English language is the accretion and growth of every dialect, race, and range of time, and is both the free and compacted composition of all.”
—Walt Whitman (1819–1892)