6Portugal’s Chapel of Bones – Évora, Portugal
Source:portugal.com
This place is not dangerous and can not put you at risk, however, it is quite creepy, and not everyone can walk into it. The bone chapel is located in Évora, Portugal, and is one of the most famous and most significant monuments of this country. The walls of the chapel are made of a huge number of human bones that will give you goosebumps.