It costs 5 € and opens on weekends at 10:30 (only time to visit it).

Cueva de la Serreta in Murcia, Spain is a hidden gem that holds ancient secrets dating back 5,000 years. Tucked away in the middle of nowhere, this UNESCO World Heritage Site features prehistoric cave paintings and the remains of a Roman villa from the 3rd century AD. With only a few visitors, it offers a unique and eerie experience, making it a must-visit for anyone exploring the region.