Cities

• Ljubljana - the picturesque pint-sized capital
• Bled - impossibly romantic mountain lake complete with castle and island
• Celje - one of Slovenia's oldest cities
• Koper - lovely Venetian city, largest on Slovenian coastline
• Maribor - Slovenia's second largest city
• Nova Gorica - the city literary on the border with Italy>
• Piran - gorgeous Venetian port
• Postojna - Site of the gigantic Postojna caves
• Ptuj - one of Slovenia's oldest cities - pronounced "P-too-ee"

Source: http://wikitravel.org/en/Slovenia