This is a stone version of my impossible pyramid I made a while ago.
Improbamid
4~w_s:921.6,354.85|fl_s:813.85,285.25|fl_s:1015.3,286.5|f_s:979.25,351.45|ws_s:737.6,242.9|f_s:640.8,81.75|ws_s:938.45,387|ws_s:684.3,244.75|f_s:775.85,78.8|f_s:778.3,207.05|fs_s:841.25,138.5|fs_s:767.05,140.15|w_s:903.55,354.5|fs_s:646.25,137.15|fs_s:711.5,157.45|f_s:639.95,72.3|f_s:643.6,211.2|w_s:503.1,358.1|fl_s:611.6,289.25|w_s:701.65,214.55|w_s:720.65,216.05|fl_s:612.25,149.1|fl_s:813.4,150.35|w_s:698,84.8|w_s:718.35,83.3|w_s:522.2,355.7|fl_s:607.7,17.75|fl_s:811.05,16.45|ws_s:680,116.65|ws_s:733.35,115|fs_s:572.35,140.9|f_s:776.7,70|fl_s:826.35,5|fl_s:408.5,291|ws_s:486.65,393.35|f_s:447.4,355|c_k:563.3,373.25|fl_s:405.25,283.85|fl_s:401.9,275.65|fl_s:593.05,10.65|fl_s:577.05,1.1|fl_s:394.85,265.4|fl_s:389.4,254.15|fl_s:566.45,-10.15|fl_s:561.55,-20.3|fl_s:852.45,-3.2|fl_s:861.45,-14.35|fl_s:880.8,-24.7|fl_s:1020,276.65|fl_s:1030,268.2|fl_s:1036.55,258.6|fl_s:1045.15,251.15|c_q:866.9,372.45|fs_s:449.75,415.2|fs_s:384.15,416.4|fs_s:1044.7,411.7|fs_s:975.2,410.35|f_s:662.25,-156.6|fl_s:896.4,-33.55|fl_s:550,-30|f_s:759.9,-156.05|fs_s:711.65,-144.75|fs_s:239.25,430.1|w_s:266.45,362.3|w_s:270.65,227.6|w_s:270.95,102.4|fs_s:1204.4,410.2|w_s:1177.1,341.8|w_s:1176.85,217.85|w_s:1174.55,93.55|fs_s:784.9,-145.05|f_s:844.05,413.1|fs_s:773.1,414.45|f_s:578.5,415|fs_s:652.8,415.7|f_s:812.05,-167.05|f_s:617.05,-167.25|f_s:772.1,-264.55|f_s:655.6,-262.9|fs_s:798.9,-375.5|f_s:771.85,-500|fs_s:634.7,-373.9|f_s:658.55,-500|fs_s:790.9,-550|f_s:777.35,-700|fs_s:635,-550|f_s:656.7,-600|fs_s:643,-700|f_s:664.15,-800|fs_s:787.35,-800|f_s:770,-900|fs_s:645,-900|f_s:674.9,-1000|fs_s:795,-1000|f_s:763,-1100|p_t:750.75,-1400|p_t:718.5,-1800|