A at 12 o’clock shows a higher area with room like walls in it, the impression is of this eroding down to the other parts of A and B. C shows more rooms, D some ceiling material. Many of these rooms are likely to be full of dust from the collapsed roof.
A shows two collapsed hollow hills, the pale areas would be rooms. B shows another two pits, the one on the right is nearly clean of the rooms as they eroded away. C at 7 and 8 o’clock s probably another pit. D shows two pit walls.
This also has a three dimensional shape like the rooms are eroding unevenly, A shows the pit wall and perhaps floor material at 4 o’clock. B shows more rooms at 2 o’clock and perhaps some at 8 o’clock. C is rooms at different stages of erosion, a higher ridge of these is at 6 and 8 o’clock. D gives another angle of the higher area of rooms at 7 and 8 o’clock. E may be ceiling material, F is a pit wall with rooms going up to its edge.
The three dimensional impression is even stronger here, A shows rooms appearing under the smooth ceiling material. B may also be tubes or suspended roads as there is an impression of empty space under them. C at 9 o’clock shows rooms with no ceilings, at 4 o’clock there is still some ceiling or they are full of soil. D at 9 o’clock is like a hill of rooms, at 1 and 2 o’clock there is a road like formation that goes on to 12 and 2 o’clock. The letter E is in a depression surrounded by higher rooms like at 7 and 8 o’clock. F shows more variations in the elevations of the rooms from the shadow. G has many straight walls and may have right angles from directly above it. The rooms at H appear to be partially eroded.
This is more of a wide angle view of degraded hollow hills, much of the detail is room shapes. It indicates then how extensive these are, A shows at 8 o’clock a pit with little structure remaining. At 6 o’clock this is an intermediate phase and at 3 o’clock the hill is much more complete. It appears that any of these hills have a smooth skin, once lost this seems to allow the interior to erode much more quickly. B shows a ridge which may have been an interior support, it also connects to the large crater so it may have been a tube or tunnel. D at 9 o’clock shows the edge of this skin, also at 10 o’clock on another hill. E at to o’clock shows a smaller amount of skin indicating it breaks off progressively until it reaches the pit wall.
The rooms at A are more rounded at 7 and 9 o’clock but have straighter walls and right angles at 2 o’clock. This can be from erosion, B at 10 o’clock shows rounded rooms less connected to each other and at 7 o’clock they may have eroded away. C at 9 o’clock may be floor material, the rooms at 3 o’clock are in better condition going up higher to D at 12 o’clock. The rooms at 10 o’clock are much lower implying this elevated area is like a HiRise with many floors. E also shows rooms with curved walls, F has straighter walls that may be sagging. G looks to be where these walls have eroded away.
This pit is bare of rooms, A may be the normal terrain around these hollow hills. B shows the smooth ground inside the pit and the pit walls are well defined. C may have some remaining rooms. D may be a tube that continues on from 11 to 2 o’clock.
The pit at B has a parabolic shape, the Latis Rectum is parallel to the tube at D.
These rooms are much more eroded, at A there show the bare ground underneath. B may have more floor material, C appears to be a higher level at 6 o’clock that erodes down to 4 o’clock. D shows other walls but none seem to be higher enough to form rooms. E shows some longer walls or tubes with a slight curve as does F. G shows some straighter longer walls at 1 o’clock eroding down to bare ground at 11 o’clock.
These rooms are much more distinct, A appears to be multiple levels with ceiling material partially covering them at 1 and 12 o’clock. B also shows rooms like cavity shapes. C shows rooms that are longer and thinner at 8 o’clock, then a higher area at 4 o’clock. D at 6 o’clock shows a higher area perhaps not eroded. E at 12 o’clock shows a hill which seems to connect to the rooms, it probably contains some of them. At4 and 7 o’clock the rooms are much clearer, F at 1 o’clock shows much higher walls.
This shows a smaller hollow hill, A is where just an outline of the walls remains at 5 o’clock and the pit wall at 4 o’clock. From B across to E the hill has rooms throughout it. C may have been a larger room, D shows other walls. F at 10 o’clock has some clear rooms at 10 o’clock similar to Earth construction techniques probably with near equal sizes in right angles, at 4 o’clock is the pit wall.
Many of these also have right angles, some old cities on Earth would have streets as irregular as this. A appears to show some rooms as the ceiling material degrades, B may be more of this. C can also be ceiling material with some walls showing through in places. D, E, and G show many more examples, F shows the pit wall with a gap between it and the rooms.
A also looks like rooms under the ceiling material, B seems to be where they are being exposed as the ceiling recedes. C is more ceiling material, below this there is a hill shape with more rooms or perhaps a second floor of them. D shows tube like connections form from one hill of rooms to the main area above it. E shows progressive erosion of the rooms, at 4 and 7 o’clock would be the pit wall. F at 10 and 11 o’clock may show a steeper side as if there are surviving walls here, at 6 o’clock is the pit wall.
These rooms have a much more radial pattern, A shows more rooms under the ceiling material at 7 o’clock. At 4 and 5 o’clock the walls are roughly parallel with some getting closer together towards the right. The rooms at B seems to go into the slope like a layer of them, many are triangular or irregular to give this radial shape. C may show rooms set into the slope like the layer of rooms broke off here, it may be possible to follow these deeper into the slope. The walls vary in height at 7 o’clock. D shows more rooms but to its right they have either eroded away or are still buried. E shows an edge of this radial array, below these there may be more rooms under the ground. At F the walls are more sparse perhaps with bigger rooms or they could be tubes and tunnels. G shows how these appear to have altered the crater shape on its lower side with a wavy ridge or interior support. H shows more rooms and I how these come to the edge of another crater. These walls would be fragile and unlikely to survive the fracturing in the ground from impacts of this size.
A probably shows rooms disappearing into the ceiling material on their right, they get progressively darker as if under more of the ceiling. B, C, and E look as if soil from the roof of the hollow hill or the ceiling has covered the pale walls partially burying them. D is a cavity with some wall shaped edges as if this part has completely collapsed.
A shows the skin which is quite thick, when these breaks up the soil underneath is much softer. B at 4 o’clock may be where this is breaking. At 2 o’clock there may be regular room like shapes being exposed. C shows how this outer skin is about the same thickness overall.
The lower part of this image is much smoother as if the skin is still intact, A shows it eroding at 2 o’clock, at 7 and 8 o’clock there appear to be the edges of the skin. At 4 and 5 o’clock, and B at 10 o’clock is a smooth shape like cement. C and D also show where this skin is breaking up.
This cement like shape closely follows a double parabola as shown. The latis rectums are also parallel t each other, still less likely to occur by chance.
Two other shapes are like parabolas as shown.
A shows more walls in good condition, many appear to be at right angles. B shows some smaller rooms at 10 o’clock and much clearer rooms at 10 o’clock. C shows more irregular walls perhaps from erosion at 9 o’clock, at 3 and 5 o’clock the rooms are much more regular. D also shows regular rooms at 6 o’clock perhaps more eroded at 4 o’clock. E shows some rooms covered by ceiling material in patches at 10 and 2 o’clock, much more covered at 3 and 9 o’clock.
More rooms with ceiling material are shown at A, more eroded at 3 o’clock. B, C, D and H also have varying amounts of erosion. E at 3 o’clock may be a set of rooms with an intact ceiling, at 1 o’clock the rooms are larger. F may be more floor material as the walls have eroded away. G may have rooms under it at 11 o’clock, at 7 and 8 o’clock there is a dark line like a tube or road.
A shows a cavity, perhaps a crater with rooms around it. B shows smaller rooms at 7 o’clock about the same size, and larger rooms or tubes at 4 o’clock, C shows more of these. D appears to show the ceiling material eroding off various rooms. E is likely to be floor material as the walls have eroded away. There appear to be more rooms under F. G shows more rounded rooms like honeycomb at 2 o’clock, some under ceiling material at 4 o’clock, also darker walls at 7 and 8 o’clock perhaps from shadows. H at 9 o’clock shows the sides of some rooms as if the walls are connected here to the rock, at 3 o’clock may be a tube. I shows clear rooms at 1 o’clock.
More rooms are shown at A, B appears to be a tube as there is a hollow along it. It may then have collapsed along its roof. C shows more rooms, D and E show where this tube probably connects to another one. F is another tube at 4 o’clock with more rooms at 12 o’clock.
These rooms are particularly clear because of the shadows, A, B, C, and D show rooms being exposed under the ceiling material. E appears to be highly eroded rooms, F and G are very clear rooms perhaps with more walls seen inside them.
These rooms are much more eroded, A shows a tube or road at 7 and 10 o’clock, going down to B at 12 and 1 o’clock. E shows the broken edge of the ceiling material at 10, 12, and 1 o’clock as does F and G. C and D may show another layer or tube, above D is probably floor material. H shows ceiling material breaking off at 10 and 1 o’clock.
These walls also appear 3 dimensional like tubes in the air at A at 3 and 4 o’clock. Other tubes are at 6 o’clock but this is in shadow. B shows tubes on the other side of a dividing line at 10 o’clock, this goes down through 6 and 7 o’clock to another ridge at C and D. The tubes at A seem to go right through this ridge, it may be a fault or crack. E shows fainter walls which may be eroded or the tops of buried walls under a ceiling. F at 8 o’clock may show floor material, at 2 o’clock to ridges or perhaps supports connect. G shows more 3 dimensional walls.
From A to F there are many right angled rooms, at B these are more eroded. C also appears eroded as if the walls are partially collapsed. To the left of D it appears 3 dimensional with the shadows, E is also 3 dimensional but there is more ceiling material or debris between the walls.
A, B, and C show more highly eroded walls, at D and E these are much clearer with more right angles. F appears much lower than G, as if G has more rooms buried under it.
A and B appear to have many small rooms, B at 7 o’clock shows a cavity in then that rises up again to F. C, D, and G also shows cavities between hills of these rooms, perhaps from erosion or they were designed this way. H and I appear like 3 dimensional hills made of these rooms, they extend across to J and K where the ceiling material appears to be more intact.