Solt works of Sečovlje.
The village was once the centre of Slovenian salt producing, now its main source of income is tourism at the Sečovlje Salina nature park. (Wikipedia)
Maribor is the second largest city in Slovenia. It lies on the river Drava at the meeting point of the Pohorje mountain, the Drava Valley, the Drava Plain, and the Kozjak and Slovenske gorice hill ranges. Maribor's coat of arms features a white dove flying downwards above a white castle with two towers and a portcullis on a red shield. (Wikipedia)
This card was sent by a 10-year-old boy. His only message on the back side of the card was hand-written and it was so cute to read it!