But I dug up some more photos for 'ya:

Capital Ljubljana is a very nice Baroque city with castle above a river, the standard photo position for the square beyond the Three Bridges:

At 2864 metres, the Triglav is Slovenia's highest:

The world's largest ski jumping hill is in a side valley towards the Slovenian-Austrian-Italian triple border (Bjørn Einar Romøren's world record is 239 m):

Just behind the Italian border is the Isonzo Valley, place of the cruellest series of standing warfare in mountains during WWI:

Piran is at the tip of Slovenia's narrow outlet to the Adriatic (which  was originally Italian territory, and whose Southern marine border has been subject to disputes with Croatia due to fishing grounds):

The large Postojna Cave Complex is also accessible to tourists by mini-train:

Nearby Predjamsky hrad (castle) is on the edge of a stone wall:

Celje was the capital of a duchy counted as Slovenia's most important medieval progenidor, in the 19th century and until the end of WWII it was a German nationalist center, today it is only the third largest city of Slovenia:

(I was in or near all of these places, but don't know Maribor, the second largest city.)

_{*Lunatic*, n.
One whose delusions are out of fashion.}