Short answers, pulled from the story.
The Moscow International Business Center, also called Moscow-City, is an under-construction commercial development on the Presnenskaya Embankment of the Moskva River in central Moscow, covering 60 hectares. It combines offices, homes, retail, and entertainment venues and holds the highest number of skyscrapers found in any one place in Europe.
The Government of Moscow first conceived the project in 1992, and by 2016 twelve of its twenty-three planned facilities were already built, with seven more under construction and four still in design. Some towers, such as One and Business Center Bagration, are not due for completion until 2030.
PJSC City Company manages the MIBC after the Government of Moscow authorized it to act in that role on the 30th of December 1994. As of February 2014, the company was owned by the Solvers Group, led by Oleg Malis.
The Vostok, or East, tower of Federation Tower is currently the tallest building in Moscow, rising 374 meters over 101 floors. Federation Tower's two buildings were constructed between 2003 and 2017 at a cost of about ₽36,830,400,000.
Four metro stations serve the complex under the names Delovoy Tsentr and Moskva-City, on the Filyovskaya, Kalininsko-Solntsevskaya, and Rublyovo-Arkhangelskaya lines. Three additional urban rail stops, Moskva-City and Testovskaya, connect it to the Moscow Central Circle, the D4, and the D1 lines.
Fires broke out during construction at Federation Tower, the OKO complex, a building on Testovaya Street, and Evolution Tower, all between 2012 and 2015. A worker also died in a fall from Naberezhnaya Tower in 2016. On the 30th of July 2023, a drone explosion damaged the OKO-2 and IQ-quarter buildings and injured one person, with a second attack on the 1st of August 2023.