Fill in the gaps with the correct words.

Saint Michael's Castle is one of the most famous ... in Russia. It is situated in Saint Petersburg. Vasily Bazhenov designed the castle to ... Tsar Pavel I. Tsar Pavel I ... into the castle, but someone killed him in his own bed forty days later. Now the ... is one of the ... of the Russian Museum. There is a collection of some most famous ... in the rooms on the second floor. In these portraits, you can see some ... leaders. In the castle, there are some nice ... , including one of Grigory Orlov. The castle ... different from each side because its architects used ... styles in different epochs.