Getting tired of the same old theme parks and fancy something a bit different? Well, we might just have a decent suggestion for you. An insane new theme park has opened 400ft underground inside one of the oldest salt mines in the world.

World Underground Salt Theme

As these images show, it’s certainly not for the faint-hearted. The subterranean Salina Turda in Turda, Romania normally features on lists of hidden wonders and it’s like stepping into an alien world. The site includes a Ferris wheel, boating lake, bowling alley, mini golf and an amphitheater. The underground world attracts around 600,000 visitors a year and it’s no wonder why.

You have to access it all via a labyrinth of elevators and stairs, giving you a chance to savor the most spectacular surroundings.

Since it was built, the salt mine has also been used for other purposes such as a cheese storage center, an alternative medicine center, and a bomb shelter during World War II . They even claim that its microclimate offers health benefits to those who visit.