Churches in Tallinn, Estonia.

Dome Church, or St. Mary's Cathedral, is the oldest church in Estonia, having survived a 17th century fire. Initially established as a Catholic church by the Danish, it became Lutheran during the Reformation and it's now the seat of the Archbishop of Tallinn, leader of the Estonian Evangelical Lutheran Church.

The Holy Spirit Church is a Lutheran church, the first one to have services held in Estonian. In the exterior wall, there's a still functioning clock carved in wood.

The Alexander Nevsky Cathedral is an orthodox church, dedicated to Saint Alexander Nevsky, who was Prince of Novgorod, of Vladimir and of the Kievan Rus in the 13th century, and won the Battle on the Ice, against the Livonian Order.

St. Olav's church dates to the 12th century, although it was extensively rebuilt since then. It became a Baptist church in 1950.