Death Valley in the United States
Death Valley isn't called that for nothing. It's one of the hottest places on Earth, registering temperatures that reach 56.7°C. No one has survived more than 14 hours there.
Boiling Lake on the island of Dominica
Don't expect to find a natural hot spring in this lake! The temperature recorded on the shores is 90 degrees Celsius, and to make matters worse, the rocks surrounding the water are extremely slippery, increasing the risk of accidents for anyone who dares to get too close.
The poison garden of Alnwick, England
The Alnwick Poison Garden opened in 2005 and, despite its high danger, it is possible to take guided tours led by professionals who not only provide scientific information about each plant, but also tell interesting — and macabre — stories to visitors.
Afar Depression in Africa
The Afar Depression lies between two tectonic plates, and the rift between them is widening. And if you think the danger is in the rift itself, know that it's the smallest of them. Below it, there's magma, and if you're feeling even more anxious, the area has 12 active volcanoes that could erupt at any moment. Not to mention that earthquakes are frequent in the region.
Lake Nyos in Cameroon
The location described above may appear to be an ordinary lake, but it has already caused the deaths of many people. Lake Nyos is situated next to an active volcano, and because of this, its waters contain a high concentration of carbon dioxide. When this gas is released in large quantities, the entire area surrounding the site becomes toxic and can lead to asphyxiation.
Queimada Grande Island, Brazil
This place is located on the coast of Sao Paulo, and the danger lies in the large number of venomous snakes that live there: around five per square meter.
Bikini Atoll in the Marshall Islands
Despite the idyllic scenery, the place is highly dangerous, and not for natural reasons. After the United States conducted nuclear tests there, the entire island had to be evacuated, and to this day it has high levels of radiation.
Bolton Street, England
The narrow river appears harmless. However, according to local legend, none of the people who tried to bathe in it survived. This is because its depth is unknown, and to make matters worse, the rapids are extremely strong.