Slanic Salt Mines are located in the Prahova Valley, and are the largest mines in Europe, with a surface area of 80,000 square meters and a steady temperature of 12 degrees Celsius
Salina Turda was placed by Business Insider at the top of their list of the ten "coolest underground places in the world", once being ranked among the "25 hidden gems around the world that are worth the trek".
The Astra Museum present the development of industry, ancient technology, culture and folk art from all over Romania, with an emphasis on the Transilvania and Maramureș regions