unveiled in November 2021, with projected deadline in 2024. Design by "AKVS Architecture" studio includes the central plateau, boiler room transformed into arched gallery with 26 revolving doors, and new building with forested terraces and oxygen bubble with microalgae based photobioreactors. Works began in February 2023, and the deadline was moved to the spring of 2025. Cardboard factory of Milan Vapa Industrialist and philanthropist Milan Vapa (1875-1939) established his cardboard and paper business in 1905 but decided to build a new, proper factory as the business expanded. He built a modern factory between the Senjak neighborhood and the Sava river from 1921 to 1924. Designed by Karl Hanisch, the was located next to the Old Railway Bridge, had its own pier, water pump, power plant and railway branch, electric crane, ambulance, chapel. The paper mill was equipped with the moderns German machines. It was the first industrial object built purposely for the paper production in Serbia and was the only one in the next 30 years. The factory was nationalized after World War II by the new Communist authorities and in the 1950s the machines were dismantled and relocated to Ada Huja. Former factory became the administrative building and the storage of the "Jugošped" company, a major freight forwarder and logistics company. The industrial complex was placed under the state protection. By the 2010s, "Jugošped" collapsed. Strong wind blew away part of the tin roof in the late 2019. When Institute for the protection of the cultural monuments wanted to contact the owner to fix it, all possible proprietors and leaseholders, including those named as such in the official papers (companies "Jugošped" and "Zepter", City of Belgrade, Republic of Serbia) denied the ownership. The roof was fixed but it is not known by whom. As of February 2020, part of the building is almost buried under tons of earth from the nearby construction site of Belgrade Waterfront. Post Office No. 6 Just south of the railway station, there is a building of the Post Office No. 6. Originally built as the Post Office No. 2 in the 1920s, it was constructed by architect Momir Korunović. Due to the extravagantly ornamented façade, it was called "architectural beauty" and considered one of the most beautiful buildings in Belgrade and among Korunović's best works. It was damaged during World War II and reconstructed later. However, the new, Communist authorities considered its façade "too