The avenue is 1.18 km long[1] and runs from the southeast to the northwest, connecting Polish Soldier Square with Wacław Felczak Street.

It is a representative downtown avenue with tenement houses listed in the Registry of Cultural Property and the municipal records of monuments.

[2][3] Throughout its entire length, it is part of the Golden Route – a tourist trail connecting the Ducal Castle with the Valley of the Seven Mills.

[f][7] Utilizing the possibility of tracing the road through uninhabited areas, a wide corridor was reserved, allowing for future significant widening, including the designation of characteristic front gardens between the roadways and buildings in the northern part of the street.

[6] The buildings were luxurious, adorned with deep balconies, bay windows, turrets, richly decorated facades, including walls faced with glazed bricks in contrasting colors.

[6] Between 1924 and 1927, at the northern end of the street, a Neo-Baroque building was erected in several stages, designed by Georg Steinmetz for the Province of Pomerania authorities (currently the Szczecin City Hall).

The buildings along the street suffered significant damage, and in the southern part, around Lotników Square, they were almost completely destroyed in a carpet bombing raid on the night of August 16/17, 1944.

[14] On 15 July 1945, a mass was celebrated on the nearby Bright Meadows, after which a ceremonial procession of its participants took place along National Unity Avenue to Grunwaldzki Square.

[16] In 1950, a monument of Gratitude to the Soviet Army in the form of an obelisk topped with a five-pointed star was erected at the avenue's exit to Żołnierza Polskiego Square.

[17] A team of architects consisting of Henryk Nardy, W. Adamczyk, and Emanuel Maciejewski designed two five-story socialist-realist residential units with pitched roofs between 1952 and 1954.

[25] On 6 February 2020, a tender was announced for the renovation of the section from Grunwaldzki Square to Wacław Felczak Street.

The scope of work included replacing the pre-war pavers with new ones, modernizing the pedestrian walkway between the roadways and sidewalks, reconstructing the traffic lights, and upgrading the water and sewage network.

Additionally, the installation of small architectural elements such as trash bins, benches, bicycle stands, and posts to prevent illegal parking was planned.

[26] The consortium Roverpol and Rover Infraestructuras won the tender and was expected to complete the work by mid-October 2021.