Hello from Olomouc!
One of the most impressive buildings here is the gothic Saint Wenceslas Cathedral founded in 1107 (!!!) 
The cathedral’s main tower is 100.65 metres high, making it the 4th tallest building in the Czech Republic.
https://www.instagram.com/p/BYtS2GmlmBD
Amazing interior of Church of Our Lady of the Snows in Olomouc:
https://www.instagram.com/p/BYvBIihFsOb/
The church of St Michael was connected originally with the Dominican Order.
It was constructed in the 13th century and reconstructed to its current Baroque form in 17 century by Italian architects. There are some remained gothic parts – St. Alexei Chapel and a Cloister. A part of the cathedral is also a cave with a lake and a place for prayer 
Address: St. Michael’s Church, Univerzitní, Olomouc.
https://www.instagram.com/p/BYyoR2WFBrw