====== Object Alignment Heights ======

Anyways I did some research trial and error work and here is bit more comprehensive list now (previous list removed for to be clear). 

**Align**

when ground is 10m, align your objects as following:

<code>
ca\plants\palm_01.p3d - 15.7m (+5.7) 
ca\plants\palm_02.p3d - 16.9m (+6.9) 
ca\plants\palm_03.p3d - 16.9m (+6.9) 
ca\plants\palm_04.p3d - 16.9m (+6.9) 
ca\plants\palm_08small.p3d - 11.5m (+1.5) 
ca\plants\palm_09.p3d - 17.7m (+7.7) 
ca\plants\palm_10.p3d - 17.9m (+7.9) 
ca\plants\akat02s.p3d - 14.2m (+4.2) 
ca\plants\banana_1.p3d - 12.2m (+2.2) 
ca\plants\banana_2.p3d - 12.2m (+2.2) 
ca\plants\banana_3.p3d - 12.2m (+2.2) 
ca\plants\banana_4.p3d - 12.2m (+2.2) 
ca\buildings\afdum_mesto2.p3d - 14.7m (+4.7) 
ca\buildings\afdum_mesto2l.p3d - 14.7m (+4.7) 
ca\buildings\afdum_mesto3.p3d - 15.2m (+5.2) 
ca\buildings\afhospoda_mesto.p3d - 15.2m (+5.2) 
ca\rocks\skala.p3d - 10.4m (+0.4) 
ca\rocks\skala_new.p3d - 14.2m (+4.2 or higher?) 
ca\rocks\skala_newk.p3d - 14.2m (+4.2 or higher?) 
ca\rocks\skala3_1.p3d - 11.2m (+1.2) 
ca\rocks\skala3_2.p3d - 11.2m (+1.2) 
ca\rocks\skala3_3.p3d - 11.2m (+1.2) 
ca\rocks\skala3_4.p3d - 11.2m (+1.2) 
ca\rocks\skala3_5.p3d - 11.2m (+1.2) 
ca\buildings\Letistni_hala.p3d - 18.5 (+8.5) <- airport terminal 

ca\buildings\dum_istan2_02.p3d - 16m (+6) <- huge big building, modern! 
ca\buildings\dum_zboreny.p3d - 12.4 (+2.4) 
ca\buildings\dum_zboreny_lidice.p3d - 12.4 (+2.4) 
ca\buildings\dum_zboreny_total.p3d - 12.5 (+2.5) 

iraq/mog buildings, 10m ground level: 
ca\buildings\dum_istan2.p3d - 12.4 (+2.4) 
ca\buildings\dum_istan2_04a.p3d - 14 (+4) 
ca\buildings\dum_istan2b.p3d - 12.4 (+2.4) 
ca\buildings\dum_istan3.p3d - 12.6 (+2.6) 
ca\buildings\dum_istan3_hromada.p3d - 13.4 (+3.4) 
ca\buildings\dum_istan3_hromada2.p3d - 14.7 (+4.7) 
ca\buildings\dum_istan3_pumpa.p3d - 12 (+2) 
ca\buildings\dum_istan4.p3d - 17.3 (+7.3) 
ca\buildings\dum_istan4_big.p3d - 20.3 (+10.3) 
ca\buildings\dum_istan4_detaily1.p3d - 17.3 (+7.3) 
ca\buildings\Dum_mesto3_istan.p3d - 12.4 (+2.4) 
ca\buildings\dum_olez_istan1.p3d - 12.4 (+2.4) 
ca\buildings\dum_olez_istan2.p3d - 11 (+1) 
ca\buildings\dum_olez_istan2_maly.p3d - 12.4 (+2.4) 
ca\buildings\dum_olez_istan2_maly2.p3d - 12.4 (+2.4) 
ca\buildings\hotel.p3d - 18 (+8)
</code>

Hope that helps.