While the Church has been under the renovation for a long time, it is still worth to be visited. Most probably, you will not be allowed to enter.
St. Andrew's Church (or St. Andrew's Catherdral of the Ukrainian...
St. Andrew's Church (or St. Andrew's Catherdral of the Ukrainian Autocephalous Orthodox Church), is a functioning church. Liturgy and evening services, weddings, baptisms and other sacraments and rites are held.
The St. Andrew's Church is a monument of history, architecture, and applied arts of the 18th century of world importance.