Explore Religious Heritage Across Europe

Oliwa Cathedral, the cathedral of Gdansk, is a Polish Historical Monument. Built in the late 16th century, it has been extensively furbished in a Baroque style, notably its portal (1688).

St. Wenceslas Cathedral was founded in the 12th century in the Romanesque style and was later rebuilt in the Gothic style. At the beginning of the 16th century, a presbytery from the early Baroque period was founded. At the end of the 19th century, the church underwent a radical reconstruction in the neo-Gothic style that gave it its present appearance.

The Olsker church, built in the 12th century, is the highest of Bornholm's four round churches. The defensive architecture of this church has been carefully designed, with extremely narrow stairs to access the upper floors, preventing intruders from capturing the structure. Restorations were carried out in 1934 and 2004.

The Olsvik church is a concrete church built in the shape of a square from 1990. The church has an altar carpet made by Else Marie Jakobsen and 32 stained glass windows painted by Kjell Nupen.

Oltedal church is a brick church that was built in 2002. The church has a rectangular plan and was architect Olav Urstad.

The Ömeriye Mosque was established on the former Church of St. Mary of an Augustinian monastery. The upper part, up to the middle of the window height, was destroyed, probably by Turkish cannonading during the siege of Nicosia in 1570. Later, the Turks completed the walls and covered the building and the vestibule with a wooden roof. The interior of the church was covered with plaster, while the exterior of the minaret was added on the north side.

Onarheim church is a wooden church from 1893. It replaced a former church that the municipality had taken over from private ownership in 1863, but which had become too small.

Ons' Lieve Heer op Solder is an old 17th century Catholic church-house converted into a museum in 1888.

Onsøy Church, whose present building dates from 1877, replaced a medieval stone church on the site, whose stones were used to build the new church. The architect, Henrik Thrap-Meyer, chose a neo-gothic design for the church.

The Reformed Church in Nieuw-Lekkerland is the biggest and oldest church in the town. It was built in 1848, but historians are sure that there has been another church before. The architect of the current church was D. Slingerland.