What is the fine-grained topic of the following text: The square is dominated by the Renaissance town hall with the characters of two of the giants of a height of 4.8 m. among other sights include the Baroque plague column Hostinné, built in 1678 as a defence of the city against the plague disease, Church of the Holy Trinity, a Renaissance man of the year 1525 and a Franciscan monastery from the year 2012 open to the public. Only return the topic.
Historical landmarks and architecture in a town square.