mexico city

Have you ever wondered what world famous cities looked like decades ago? The impressive photos below will take us back to the past.

Archaeologists discovered about 60 mammoth skeleton in northern Mexico City (Mexico).

MUFON's Clifford Clift general manager said that about 80% of cases can be explained by science, but about 20% of the rest can make you have a haircut.

Never before has air pollution in the world been in such an alarming situation. In particular, many cities are at extremely serious pollution levels.

According to scientific studies of the United Nations Development Program (UNDP), published April 21, the