Interesting facts

Roman Pantheon is built on principles of a sundial
Very old sundial discovered in Ukraine, link
many historic buildings are precisely oriented so that the Sun illuminates shrines on specific dates (Maklavun in Istria, Stonehenge, Abu Simbel...)
in Bible, prophet Isaiah calls upon God and he makes the shadow of Akhaz sundial to go back 10 degrees (Second book of kings, 20,7-11)
first sundial was made probably in Egypt in 15th century BC
on Dinara mountain (Croatia) there is a rock called Samograd, a natural sundial used by locals to tell time
in Zagreb, there was a sundial on St. Marco Church built in 1588
in Nin, curch of the Holy Cross from 9th century served also as a sundial
in Novi Sad (Serbia) there is a sundial made from flowers
in Alexandria (Egypt), there is a park with flower sundials
in Macchu Picchu (Peru) there is a rocky sundial (damaged during filming)
in Travnik (Bosnia and Herzegovina), on Hadži-Ali-beg mosque, in Livno also on mosque, and in Neum interesting sundials can be found
in Vid near Metković a roman sundial was found (place called Narona)
Faust Vrančić constructed a sundial (that could measure days and months)
firm DURO-METAL on Horvatovac (Zagreb) makes sundials
in museums there are a lot of sundials (solar ring in Croatian Historic Museum in Zagreb from 1695, equinocial sundial with quadrant from 1801, Arts and Crafts Museum in Zagreb has a few sundials, museum in Gornja Stubica, Ogulin, Senj, Bjelovar...)
pretty sundials in Pančevo, Sombor, Srijemska Mitrovica (Serbia), Herceg-Novi (Montenegro)...