If you are planning to visit Europe and experience its casino tourism, one of the best places to visit in Slovenia is the town of Nova Gorica. Along with the biggest casinos in Slovenia, Nova Gorica also offers several tourist attractions. Dubbed the city of Roses, it hosts the Rose Festival every spring. The main event is located in the garden of the Kostanjevica Franciscan Monastery, where Europe’s second largest collection of bourbon roses is located. The underground catacombs of Kostanjevica Monastery hosts the remains of the French royal family of the Bourbons, making it one of the most interesting places to visit in Slovenia.