From here you can see some of the most impressive views of the complex layout of the Old Town, with layer upon layer of crenulated rooftops and hundreds of chimneystacks.
Houses in Old Town have rooftops and chimneys. 
mnli hypothesis: Houses in Old Town have rooftops and chimneys.  premise: From here you can see some of the most impressive views of the complex layout of the Old Town, with layer upon layer of crenulated rooftops and hundreds of chimneystacks.