Occurrence of Attributes in Original Text

The text related to the cultural heritage 'State Historical and Cultural Park “Ancient Merv”' has mentioned 'Dome' in the following places:

Occurrence Sentence	Text Source
It is square, 27 meters per side, with two entrances on opposite sides; a large central dome supported by an octagonal system of ribs and arches covers the interior (Ettinghausen 270).	WIKI
The dome's exterior was turquoise, and its height made it quite imposing; it was said that approaching caravans could see the mausoleum while still a day's march from the city.	WIKI