Discovered in the 17th century in the south west of the country is the impressive natural site of the Postojna Cave, one of Slovenia's premier underground cave systems. Measuring a huge 24 kilometres (15 miles) in length, the major attraction is a giant stalagmite named 'Brilliant', one of the largest stalagmites in the world.
17. Postojnska Jama
Completed in 2015, in the extreme west of the country in the village of Dolgovaške Gorice in hills above the town of Lendava is the Vinarium Tower, the highest observation tower in the country. With its observation deck 42 metres (138 ft) above the ground atop a hill 302 metres (991 ft) above sea level, the view from the viewing platform allows visitors to see four countries at once; Slovenia, Hungary, Austria and Croatia.
16. Stolp Vinarium
North from the capital, Ljubljana, surrounded by rolling green hills and not too distant mountains is the town of Kamnik, one of the oldest towns in Slovenia. Home to two ruined castles, cobbled streets, and a large Franciscan monastery, the town holds a wealth of Austro-Hungarian style architecture in a place not too many tourists make time for. The true highlight of this pretty little town comes when just strolling around, realising that from high vantage points the view is one of orange rooftops looking out towards the snow topped Kamnik Alps.
In the north of the country, at the northern end of Triglav National Park is the large Pericnik Waterfall. Set within gorgeous mountain forest surroundings, this waterfall with its single drop of 52 metres (171 ft) is certainly one of the prettiest in the country.
14. Slap Peričnik
First mentioned as far back as 1274 AD, located south east from the capital, Ljubljana, is the Renaissance and Gothic styled Predjama Castle, seamlessly built under a natural rocky arch at the mouth of a cave. After near destruction, what stands there today was built in the mid 16th century, holding the Guinness World Record for the largest cave castle in the world.
13. Predjamski Grad
In the north of the country, at the eastern edges of the beautiful Triglav National Park is the Vintgar Gorge, a 1.6 kilometre stream of crystal clear water flowing through a canyon with walls that can reach up to 100 metres (328 ft) high. Walkways were introduced as far back as 1893 AD so that tourists could walk the entire length, terminating at the picturesque 13 metre (43 ft) high, Sum Waterfall.
12. Soteska Vintgar
In the north east of the country in the traditional Lower Styria region is the city of Maribor, the second largest city in Slovenia. Still retaining some of the original city tower walls, the old town of Maribor is a place of medieval, Renaissance and Baroque architecture, though much has been renovated throughout the centuries. Highlights for visitors include the Maribor Castle, Betnava Castle, the huge Franciscan Church and the wonderful ornate pastel buildings surrounding the quiet city square.
In the extreme south west of the country, along Slovenia's mere 47 kilometres (29 miles) of coastline is the town of Piran, located on the edge of the Adriatic. Filled with medieval architecture, narrow streets and compact houses, the centre holds the lovely Tartini Square with the looming St. George's Parish Church, where visitors can climb its tower for great views over the centre of town.
Pictured from the 7th century fortification, The Walls Of Piran.
In the far north west of the country, just north from the pretty village of Žaga is the Boka Waterfall, crashing from a karst spring over a sheer limestone wall. Easily accessed from the Boka Creek car park, the falls drop in two stages, the first part falling 106 metres (348 ft) and the second 33 metres (108 ft), making for two of the largest waterfalls in Slovenia.
In the far north west of the country, at a peak altitude of 1,611 metres (5,285 ft) above sea level is the Vrsic Pass, the highest mountain road in Slovenia and the highest pass in the Eastern Julian Alps. With a wealth of lovely mountain lodges, this area directly around the pass is considered the starting point to some of the finest hikes in the region. For those just looking for a scenic drive, the Vrsic Pass is probably the best road in Slovenia.
8. Prelaz Vršič
In the extreme north of the country, directly north from the capital, Ljubljana, close to the Austrian border is a simple scenic area located around Klemensek Farm. From pretty much anywhere along the wonderfully named 'Panoramic Road' there are simply magical views of the great open valleys and exposed rocky mountains.
7. Izletniška Kmetija Klemenšek
In the almost exact centre of the country is the capital and largest city of Slovenia, Ljubljana, once a major city of the Socialist Federal Republic Of Yugoslavia. Intersected by a number of rivers, major sights in the city include the Triple Bridge, connecting the modern section of the city to the old historical centre of Prešeren Square, home to the mid 17th century red Franciscan Church Of The Annunciation. The undoubted highlight of the city is Ljubljana Castle, first constructed in the 12th century it was updated and renovated over the subsequent 700 years. Still holding pride of place at the top of Castle Hill, it visitors unparalleled views over the entire centre of the Slovenia capital.
In the far north west of the country, close to the border with Italy is an area known as the Soca Valley, a huge landscape of high peaks, deep valleys, thick forests and flowering meadows, carved by the weaving Soca River. Set among the dramatic white limestone mountains of the Julian Alps, this entire region is picture perfect.
5. Soca Dolina
In the extreme north of the country, directly north from the capital, Ljubljana, close to the Austrian border is the 24 square kilometre (10 square mile) Logar Valley Landscape Park, protecting one of the most beautiful Alpine glacial valleys in Europe. Measuring 9 kilometres (5.5 miles) long in the heart of the Kamnik Savinja Alps, it is a picturesque area of wooded forests and open meadows surrounded by steep mountain peaks. Visitors to the area should also go in search of the 90 metre (295 ft) Rinka Waterfall.
4. Krajinski Park Logarska Dolina
In the south west of Slovenia, close to the border with Italy is the world renowned Skocjan Cave system, a vast underground canyon of such exceptional volume it makes for one of the most famous underground features on the planet. Ranking among the most important caves in the world, this jewel of Slovenia has been acknowledged as one of the natural treasures of the planet as well as a natural and cultural UNESCO World Heritage Site.
3. Škocjanske Jame
In the north west of the country, covering an area of some 880 square kilometres (340 square miles) is Triglav National Park, the only national park in Slovenia. Protecting a beautiful alpine landscape, the park takes its name from the 2,864 metre (9,396 ft) Mount Triglav, the highest peak of the Julian Alps. Home to mountains, lakes, forests and extensive hiking trails, beauty spots within the park include the Soca Valley, Logar Valley, Vintgar Gorge, Jasna Lake and Lake Bohinj among many others.
Pictured is Jasna Lake, guarded by the statue of Zlatarog, meaning 'Golden Horn', the legendary Chamois of Mount Triglav.
2. Triglavski Narodni Park
In the north west of the country just east of Triglav National Park is arguably Slovenia's most iconic location, Lake Bled. Situated in a picturesque landscape, surrounded by mountains and forests, the lake surrounds Bled Island. There are several buildings on the island, the main one being the Pilgrimage Church Of The Assumption Of Mary with its 52 metre (171 ft) tower. The lake, the island, the mountains, the medieval Bled Castle that stands up high on the north shore all make this one of the most beautiful and well known locations in the whole of Europe.