"Temppeliaukio Church is a Lutheran church in Helsinki. The church was designed by architects and brothers Timo and Tuomo Suomalainen, and opened in 1969.
The interior was excavated and built into the rock, but is bathed in natural light entering through the glazed dome. The church is used frequently as a concert venue due to its excellent acoustics. The acoustic quality is ensured by the rough, virtually unworked, rock surfaces. Leaving the interior surfaces of the church exposed was not something that was in the original plans for the church, but the orchestra conductor Paavo Berglund and the acoustician, Mauri Parjo, contributed to the plans. The back wall of the altar is a majestic rock wall, originally created by a withdrawing glacier.
The Temppeliaukio church is one of the most popular tourist attractions in the city; half a million people visit it annually. The stone-hewn church is located in the heart of Helsinki. Maintaining the original character of the square is the fundamental concept behind the building. The idiosyncratic choice of form has made it a favorite with professionals and aficionados of architecture." - in wikipedia
This postcard is from 's-Hertogenbosch, the capital city of the province of North Brabant, in south Netherlands, some 80 km south of Amsterdam.
"The old city of 's-Hertogenbosch is still almost completely surrounded by continuous ramparts. On the south side, this wall still borders on an old polder, kept intact as a nature reserve, that stretches all the way to Vught. These city walls are currently undergoing renovations. Hidden below the old city is a canal network called the Binnendieze that once spanned 22 kilometres. It started out as a regular river, the Dommel, running through the city in medieval times but due to lack of space in the city, people started building their houses and roads over the river. In later times it functioned as a sewer and fell into disrepair. In recent decades, the remaining sixth of the old waterway system has been renovated, and it is possible to take several guided subterranean boat trips through it." - in: wikipedia