Red Lake (Lacul Rosu) - an alpine lake located in a natural forest reservation, gets its name from its unusual red water, caused by a natural phenomenon and the sediment deposited by the surrounding volcanic rocks.
Cheile Bicazului (Bicaz Gorges) - a 10-kilometer-long gorge carved by the Bicaz River, with impressive limestone cliffs, waterfalls, and tunnels.
Mud Volcanoes of Berca - a unique geological phenomenon consisting of several mud volcanoes, formed due to the presence of natural gas underground, constantly emitting a cold mudflow and creating bubbling mud pools and small cones.
Buila Vantului Cave - a large and complex cave located in the Buila-Vânturarița Natural Park, with multiple galleries and chambers, impressive stalactites and stalagmites, and underground lakes.
Sarmizegetusa Regia - the most impressive Dacian settlement, located on the top of a mountain. The fortress was the capital of the Dacian kingdom and boasts various ruins, fortifications and temples.
Scărișoara Glacier (Ghetarul de la Scarisoara) - the largest underground glacier in Romania, located in the Apuseni Mountains, accessible through a 482-meter-deep ice cave.
Balea Lac (Balea Lake) - a glacial lake situated high in the Făgăraș Mountains, known for its picturesque scenery and the Transfăgărășan road that passes nearby, offering stunning views.
Bigar Waterfall (Cascada Bigăr) - a unique and mesmerizing waterfall, formed by a small stream cascading over a natural, mossy, dome-shaped rock covered in moss, creating a mesmerizing effect as the water flows in multiple directions.
Retezat Mountains National Park - a protected area with lush forests, alpine meadows, and towering peaks, including the highest mountain in Romania - Peleaga Peak. The park offers stunning hiking trails and is home to various wildlife, including bears, wolves, and chamois.