"28 May"

Inaugurated: November 6, 1967.
Commissioning date of the second exit: December 30, 2009                
Address: Jafar Jabbarly square, Mirali Gashgai street; second exit - Salatin Askerova str.

Construction profile: deep-level, 3 arched ceiling, 2 rows, 6 pylons.

Passageway Station: a change to "Jafar Jabbarli" station of the Green ("Khatai-Darnagul") line.

Project name: Originally "Vagzal" (in Russian - "Vokzalnaya")

Previous name: "28 Aprel" (until April 9, 1992).
Length of the main station tracks: 102 m 
Architects: Y.G.Hajiyev, Sh.S.Guliyev.
It is one of the first five stations opened on the territory of “Baki Soveti-Nariman Narimanov”. Located near the central railway station of the capital city, it is the metro station, not only important for the Metro, but also a part of a significant transport network. It also stands out as an intersection of two important metro lines. 
Given the above-mentioned, as well as its proximity to the downtown and important public, social and cultural centers, it is the underground station with the most passengers and is called the "gates of the city". 
The previous name was given in honor of the establishment of Soviet power in Azerbaijan. According to the project, it was built in a cohesive architectural ensemble with the railway station. On the facade of the station, in the cash office of the upper vestibule, was a metal-embossed sheet (“toreutics”) illustrating the evolution of transport - "History of transport” - from cart to rocket. On one side of the entrance arch were engraved three metallic hands shaking each other, and on the opposite side, the symbolic key of the city.
In the central hall, on the back wall was an image of the court of arms depicting sea waves and three torches over the city.
The station floor was covered with red granite embroidered in black element, creating an impression of a national carpet. Also, combined with the station's red and white granite floor coating, the tunnel walls of the pylon and the platform made of white and blue "Ufaley" marbles manufactured in Ural,  created a tandem of vastness and simplicity. 
After independence was gained, the station was renamed "28 May" in remembrance of the day of the establishment of the first democratic republic in the East, with appropriate design changes introduced. 
In the mid hall, on the center of the wall towards the escalator was a moon and an octagonal star and a mosaic panel of minaret-dominated "boards of Icherisheher (The Inner City)" . 
In the upper part of the circular middle hall (towards the change to “Jafar Jabbarli” station), on the edge of the octagonal star on the background of the three-colour Azerbaijani flag was the bas-relief of Muhammad Amin Rasulzadeh, one of the leaders of the Democratic Republic of Azerbaijan, with his slogan "The flag, once raised, will never fall" on the surface.
In the middle hall, on the pylons were mosaic panels dedicated to the Democratic Republic of Azerbaijan. 
10 ceramic statues ("Soldiers of the National Army", "General of the artillery", "Mother and child", "Soldier Protecting oil wells", "Musavatists (equalists) reading a newspaper", "Turkish army soldiers" and saucers) were placed inside the wooden octagonal star, five to five on each track in between the panels. These octagonal stars were in harmony with the large octagonal stars (the number of these stars was 9 in the middle hall) which had remained on the floor since the inception.
The figures "1918-20" were engraved on one of the moon-star saucers, and the words "28 May" on the other. The panels were illuminated by a background light.
The ventilation ducts on the station's tracks towards the tunnel were covered with uninterrupted, separately-cast ornamental aluminum grates in between the pylons. The octagonal star also dominated among the ornaments of grates.
In 1993, with the opening of the "Jafar Jabbarly" station, a passageway between the two stations was commissioned. The asbestos ceiling over the three-lane escalator was reconstructed in 2003 and replaced with bright aluminum profiles. As per the state program, the expired LT-3 escalators were replaced with four "Victoria" escalators designed by "ThyssenKrupp", Germany for deep-level stations and commissioned on September 15, 2010. 
On December 30, 2009, with the participation of the President of the Republic of Azerbaijan, Ilham Aliyev, the second 40-meter deep entrance and exit of the station was commissioned on Salatin Askerova Street, becoming the first deep-level station with two exits in the capital city.

In the vestibule of the second exit, built in a modern architectural style, three “ET-3M” escalators designed for deep-level stations are in use. The total length of the pedestrian tunnel leading to the station is 165 meters. Passengers can also move through this tunnel to arrive at “Jafar Jabbarli” station. 
Reconstruction works at the station were launched in 2013. On May 5, 2015, the works were completed in the mid hall of the platform, with its ceiling and floor decorated with a pattern image based on national ornaments, thus creating an integrated composition. Bright lighting and new light-colored marble layers on the walls make this pattern even more impressive. The illuminated road signs have been installed on the station tracks. Walls and ventilation ducts have been designed in a new style. 
The upper vestibule of the station has been designed in a completely new style, along with a new design for the entrance hall. Compared to the previous dome-shaped entry and exit, the new premise built above the station is 2 meters higher, making the station look spacious. Taking into account the future separation of the lines, another stairway has been laid to provide access from the exit of the station to the "Jafar Jabbarli" station. A new circular lighting system has been installed in the dome area of the vestibule. The location of the automatic checkpoint at the entrance has been moved forward to further increase the throughput of passengers. 
In addition, the expansion of the entrance pavilion by 150 square meters provides a expedient flow of passengers from the front door to the ticket office.
A piece of national mugham "Karabakh shikestesi" is played on the trains arriving at the station.