Many features of the minaret are also included in other religious buildings in the country, such as a wide band of ceramic tiles, alternate pattern work on each side, and Moorish-styled scalloped keystone arches .

The castle within these gaudy brackets was sober and undecorated except for the staring eye carved into the keystone arch above the main entrance.

The pilot had ducked in, now out again, through a keystone arch leading toward the east wing, not even pausing to take glass in hand.

This 12th-century 70m-high tower is the architectural prototype for Seville's La Giralda in Spain and Rabat's Le Tour Hassan, and it's a monumental cheat sheet of Moorish ornament: scalloped keystone arches, jagged merlons (crenellations), and mathematically pleasing proportions.

Perhaps Moorish in inspiration, its burnt-orange front is a keystone arch forming its own veranda.

Immediately behind the front door is a hall, separated from a rearward stair hall by a keystone arch and fanlighted doorway.

From the former are the two keystone arches on either side of the parlor mantel, and the cherry spindles and banister on the second floor and attic.

The interior is described as having a "massive hearth with segmental keystone arch."

The two front corners of the house sport "fluted pilasters on high bases", which "also flank the central pavilion, framing also in miniature the elements of the Palladian window, which exhibits keystone arches and Gothic arch muntins in the large section."