Once every hundred years or even less often: natural phenomena that are almost impossible to see

Nature has amazed humans for thousands of years. Even today, in the era of space travel, scientists marvel at the rarest natural phenomena that occur roughly once every 100 years.

The fact is that many of them require a confluence of factors for their manifestation. A fire tornado, for example, occurs when several fires merge into one, heating the air masses.

The largest fire tornadoes have reached heights of up to 5 kilometers. Almost all of them have been recorded in history—the Great Fire of London in 1666 was unable to be extinguished precisely because of such a tornado.

An ice tsunami is no less bizarre. Canadians experienced one in 2011: the ocean dumped tons of frozen water on the shore, forcing people to be hastily evacuated.