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Photo: Jojo, en:Jojo_1, pl:Jojo, CC BY-SA 3.0 via Wikimedia Commons
A small, approx. 45 minutes long, but unique cave. "Decorated" with aragonite formations—only 3 such caves were discovered so far in the world. Closed November-March.
Ochtinská Aragonite Cave is a unique aragonite cave situated in southern Slovakia, near Rožňava. Although only 300 m long, it is famous for its rare aragonite formations. Along with other caves of the Slovak Karst, it is included in the UNESCO World Heritage list as a component of Caves of Aggtelek Karst and Slovak Karst site, because of its diversity of aragonite formations and testimony to the cave-forming geologic processes.
© OpenStreetMap contributors
Slavošovce tunnel
An unfinished 2.5-km long train tunnel (be sure to have a good headlamp!), accessible by general public, connects Slavošovce and Magnezitovice. The northern entrance is easily accessible, the southern has layers of stream sediments and thus you may get very dirty trying to cross it (or even get stuck in 1-m deep mud at times). Different happenings take place here at times.
An exhibition about the life and culture of the Hungarian nobility in the 18th and 19th century. Nice park and small waterfall.
Gombasec
Frozen all year long, this freely accessible cave is lowest altitude ice cave in Europe. Going outside the designated path is prohibited. The cave lies up a small flat hill in a picturesque nature that is worth seeing on itself.
One of the most recognizable buildings in the area. The castle was damaged by fire in 2012, and remains closed for public.