The Western City Gate (Serbian: Западна капија Београда, romanized: Zapadna kapija Beograda), also known as the Genex Tower (Serbian: Кула Генекс, romanized: Kula Geneks) is a 36-story skyscraper in Belgrade, Serbia, which was designed in 1977 by Mihajlo Mitrović in the brutalist style.

The tower got its popular name "Genex" after this group, while its official title remains Western City Gate.

The declaration refers to the building as an "urban lighthouse" and calls it the most striking motif of New Belgrade, and a visual benchmark for the entirety of the capital.

[2][7][8] In the late 1960s, architect Mihajlo Mitrović was given a task of projecting a 12-floor building and the head offices of the local community of Sutjeska, a sub-municipal administrative unit, on Narodnih heroja Street.

A fierce opposition, disagreements and disputes ensued, but Mitrović was persistent in his idea, giving detailed and exhaustive explanations in front of the numerous commissions.

[2] One of the rare colleagues who publicly supported Mitrović was Stojan Maksimović, who several years later designed another Belgrade's landmark, the Sava Centar.

[5] Harsh public polemics with architectural engineer Borislav Stojkov, one of the Belgrade's urban planners at the time, and Mitrović caused a rift between the two which was amended only over a decade later.

With added science and technology centers, libraries, concert halls, galleries and bookshops, it would make a cultural and educational "Disneyland", opened non-stop.

[16][17] A group of electrical engineers suggested addition of Mihajlo Pupin to the joint museum with Tesla, creation of experimental labs and recreation of the Wardenclyffe Tower at the top of Western City Gate.

[16][19] At the public sale on 6 February 2023, the commercial part of the property was purchased by the Belgrade-based hospitality entrepreneur Aleksandar Kajmaković, nicknamed Aca Bosanac, for RSD2.4 billion (~€20 million), three times its listed price.

Kajmaković's company Eureka bar, which reportedly outbid six other entities vying for the property, owns numerous hospitality venues around Belgrade such as the traditional Skadarlija kafanas Tri šešira, Dva jelena, and Zlatni bokal, eatery Boutique, and Lafayette cabaret nightclub[20] Police had to intervene as few members of the opposition hеckled the bidding.

[21] Kajmaković is connected to major criminal clans in Serbia, being a right-hand man of the "controversial businessmen" Predrag Ranković Peconi [sr].

[22][23][24][25] Because of his history, the opposition considers Kajmaković a front for the real owner, and called for the annulment of the sale due to the general infringement of the entire process.

The treatment of the form and details is slightly associating the building with postmodernism and is today one of the rare surviving representatives of this style's early period in Serbia.

[2] Commission which declared the building a cultural monument prized the simplicity of solutions, proportional order of two towers and the cylindrical top extension with the rotating mechanism, located above the central axis of the complex.

Problems included the capacity and malfunctions of the elevators, clogged garbage chutes, bad thermal and sound isolation, and lack of flexibility of the concrete panels which were the main construction material.

[2][30] The mural was commissioned by Mitrović and coincidentally served to commemorate the visit of François Mitterrand, then head of the French Socialist Party, to Yugoslavia.

Association of Serbian Architects in 2019 filed a motion for Western City Gate to become a fully protected cultural monument.