The spire of St Olaf's Church (St Olav's Church) (Oleviste kirik) on the city skyline of Tallinn, Estonia, by the Gulf of Finland, Europe

Aerial image of Wasdale Head, with St. Olaf's church, the smallest church in England, Brackenclose, Wasdale Fell, Kirk Fell, High Fell and Mosedale, Lake District National Park, Cumbria, England, United Kingdom, Europe

Exterior of St. Olaf's church, Old Town, UNESCO World Heritage Site, Tallinn, Estonia, Europe

Exterior of St. Olaf's church, Old Town, UNESCO World Heritage Site, Tallinn, Estonia, Europe

View over the Old Town towards St Olaf's Church at sunrise, Tallinn, Estonia

View over the Old Town towards St Olaf's Church at sunrise, Tallinn, Estonia

View over the Old Town towards St Olaf's Church at sunrise, Tallinn, Estonia

View over the Old Town towards St Olaf's Church at sunset, Tallinn, Estonia

View over the Old Town towards St Olaf's Church at sunset, Tallinn, Estonia

St. Olaf's Norse church, Lunda Wick, built around 1200 and still used in 1785, graveyard has two memorial stones for Bremen merchants, who died in the 16th-century, Unst, Shetland Islands, Scotland, United Kingdom, Europe

St. Olav's Church (Oleviste kirik) in Tallinn, Estonia, Baltic States, Europe

View from the cathedral hill, Toompea, towards the lower old town with city walls and St. Olafs church, Tallinn, Estonia

View over bridge to St. Catherine's Church and St. Nikolai's Church at night, Speicherstadt, Hamburg, Germany

View from the cathedral hill, Toompea, towards the lower old town with city walls and St. Olafs church, Tallinn, Estonia

View over the old town of Tallinn seen from Rohukohtu terrace. One of the tower of the city walls in the front, St. Michael's monastery and St. Olaf's Church in the back, Tallinn, Estonia

View over the old town of Tallinn from Rohukohtu terrace. The towers of the city walls in the front, St. Michael's Monastery and St. Olaf's Church in the back, Tallinn, Estonia

View from St. Olafs church over the old town towards the upper town, cathedral hill, Tallinn, Estonia

View from St. Olafs church over the old town towards the upper town, cathedral hill, Tallinn, Estonia

View over the old town of Tallinn from Rohukohtu terrace. The towers of the city walls in the front, St. Michael's Monastery and St. Olaf's Church in the back, Tallinn, Estonia

Alley in the historic centre and St. Olaf's church, Tallinn, Estonia, Baltic States, North Europe

Alter Flecken with St. John's Church, Zuffenhausen district, Stuttgart, Baden-Wuerttemberg, Germany, Europe

Parish Church of St. Peter in Petersberg near Fulda, Rhoen, Hesse, Germany, Europe

Fulda Cathedral, built by Johann Dientzenhofer, 1704 - 1712, with the Romanesque Chapel of St. Michael, Fulda, Hesse, Germany, Europe

St. Olaf's Church and surrounding cityscape at dusk, Tallin, Estonia