Later on as the USSR fell, The Cathedral was rebuilt and reopened in 2000. While the nearby subway station, built in 1935 as Palace of the Soviets station, was renamed Kropotkinskaya in 1957.
Until this day Palace of the Soviets remains as a mysterios ghost building that never actually existed uet managed to scare and amaze the world by the sheer idea of its existance.
If you would like to know more about the Palace of the Soviets and see some of the projects that took part in the contest, check out this link.
You can also visit Shchusev state museum of architecture and find even more information about it there