Strangely the building was built upside-down in Spain

If the concept of building a house is only confined to the thought of building from the foundation to the roof, there are probably many unique works like the El Enchufe twin building that could not be formed and exist today.

Human construction techniques have never been as advanced as today, we could even build buildings that went against the rules, which is 'from the roof to the foundation'.

Twin Towers Torres de Colón.

Torres de Colón Twin Towers has another name El Enchufe , roughly translated as The Plug built in Plaza de Colón, Madrid, Spain, which is a special mention.

Many people call Torres de Colón (Columbus Towers) the ugliest building in Madrid, not only because the roof looks rather humorous, surrounded by copper stained glass. However, whether local people like it or not, this 1986 building has become a symbol of the famous city of Madrid.

Since 1986 this has become a symbol of the famous city of Madrid.

Columbus Towers began to be built with two central pillars on the concrete floor, after which the engineers continued to build the remaining floors later but from top to bottom. The structure of the roof is finally formed. This special construction technique is confirmed to save time, cost of materials, equipment and manpower.

At the time of construction, few people would have imagined what the future shape of the building would be like.

The building still stands and survives to this day.

This rather special construction technique has been little changed but not yet appeared in the world. Many other buildings are also built according to this technique, such as the Dublin Central Bank in Dublin and the Standard Bank Center in Johannesburg, South Africa. In addition, there are some other works in Poland and Bulgaria.

The building is built according to similar techniques in Sofia, Bulgaria.

In addition to the method of fixing the floors with cables, there are many other innovative methods that have been tested. The industrial city of Magnitogorsk in Russia tested a construction technique and fixed the floors with the top floor. While the Netherlands also tried another variant of this technique called Jackblock .

This construction technique still ensures maximum safety for the whole building.

Oddly enough, this construction technique still ensures maximum safety for the whole building like the traditional construction technique from the foundation to the roof.