Sea arches and seastacks
It is a vault or vaulted roof. It is formed by a series of vaults/vaulted arches.
it is said that you can lick the roof of its arches because of its texture.
It is made up of arches.
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Sea stacks are formed when a sea arch collapses and sea arches are formed when waves (pound) erode or ware away a whole in the headland.
In deserts, arches and mushroom rocks are formed when the sand in sand storms blows it and other materials against the rock which eventually erodes the rock into interesting shapes such as arches. ~Tom1819
sea arches
A sea arch is an opening that was made naturally by the ocean by the sea water eroding the rock. Sea arches can also be formed by wind, or by the land. Or they can also be combination of all three. A sea arch is an arch that is made from an eroded cliff face. The water makes the sea arch after many years.
I think you're looking for the "Dome".
I'm not so sure if it's correct, but I think it's an arcade.
Waterways used to run through the arches.