Arch | |
|---|---|
| State | Bern |
Country | Switzerland |
| Capital | |
| Population | 1514 |
| Postcode | 3296 |
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof.
Rostov-on-Don | |
|---|---|
| State | |
Country | |
| Capital | |
| Population | 1114806 |
Rostov-on-Don (Russian: Ростов-на-Дону, tr. Rostov-na-Donu, IPA: [rɐˈstof nə dɐˈnu]) is a port city and the administrative centre of Rostov Oblast and the Southern Federal District of Russia. It lies in the southeastern part of the East European Plain on the Don River, 32 kilometers (20 mi) from the Sea of Azov, north of the North Caucasus.
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