Caja Mágica, which translates from Spanish as "Magic Box," is an impressive modern multi-functional sports complex that has become one of the landmarks of Madrid, the capital of Spain. Located in the picturesque San Fermín district on the banks of the Manzanares River, this arena draws attention with its futuristic design and scale.

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The primary purpose of Caja Mágica is hosting prestigious tennis competitions. It is here that the battles of the famous Mutua Madrid Open, part of the elite ATP Masters 1000 and WTA Premier Mandatory series, take place annually. This makes the arena a true mecca for tennis fans from around the world who want to see their idols in action.
The uniqueness of Caja Mágica is largely defined by its innovative architecture, designed by the famous French architect Dominique Perrault. One of the main features of the complex is its roof, consisting of movable sections. This high-tech design allows the arena to be adapted for events both outdoors and indoors, regardless of weather conditions. The capacity of the main arena is approximately 12,442 spectators, placing it among the largest sports venues not only in Madrid but in all of Spain.