And yes, you shouldn't store your wine just any old way if you want it to improve. Even if perfect wine cellars are rare, you can set one up in your flat or house if you have some knowledge on the subject. 

Let's start with the most important point, the temperature. A good cellar should have a temperature of about 18 degrees. Keeping the temperature constant is also important because it helps the wine to develop naturally. 

The humidity must also be constant for a wine to age well. Darkness can also be an important factor, if the wine is exposed to too much light it can lead to an unacceptable aromatic deviation. Light produces oxidations that change the colour and taste of the wine. This applies to both natural and artificial light. In addition, the bottles should be stored lying down. This allows the wine to remain in contact with the cork.

Finally, vibrations should be avoided, as they disturb the wine and can re-suspend deposits that have formed during ageing and can activate bacteria that are harmful to the wine. Ventilation of the cellar is also important as it allows the evacuation of any odours that the wine may be impregnated with.