Constructed between 1406 and 1410, Amiens' massive square belfry has a mid-18th-century top reaching 52m, which was rebuilt after it was damaged in 1940 by German bombing. The tourist office runs two guided tours per month, one including a cathedral tour, plus night-time visits in July and August – check the website and reserve well ahead.
Today the belfry is part of the UNESCO as a World Heritage Site The Belfries of Belgium and France, a group of 56 historical buildings.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.