# Number 5

**Number 5** is a number in the series Fibonacci and the number of planets visible to the naked eye - Mercury, Venus, Mars, Saturn, Jupiter. The number 5 is also the number of human feelings. This is the number of oceans, and, according to the classification in ancient China and ancient India, the number of elements. The number 5 is the number of rings in the Olympic Games logo and a popular number for pop groups and adventurous teenagers.

We used to see the face of the clock, divided into 5-minute intervals, "5 more minutes" - the standard phrase, as well as the designation of a short pause: "five-minute break".

Number 5 is the key number of the headquarters of the US Department of Defense, known as the Pentagon. It not only has a five-sided form, but also consists of 5 concentric "rings" of corridors, and also includes 5 floors (plus 2 more floors under the ground). The comparatively low design produces an even more stunning effect due to the fact that there is one of the most capacious office buildings in the world with a staff of 26000 employees. The shape of the Pentagon does not bear any special meaning, although some theorists will tell you that it is associated with a Tudor rose. In fact, the Pentagon building was built on the ground, along which two roads crossed at the appropriate angle, which naturally led to the construction of a building based on the number 5.