Do you know which street has only one building with an entrance and the number 1?

The answer:

Church Street
Kostolná Street in Bratislava is one of the shortest and most unusual streets in the historic center of the city. It connects the Main Square with the Primatial Square and is flanked on both sides by monumental historical buildings. In terms of postal addresses and entrances, this street has only one descriptive number – Kostolná 1. This address is assigned to the Baroque-Classicist building that currently houses the Faculty of Theology of the University of Trnava. Although the street is surrounded by large buildings, none of them have their main entrance or assigned number oriented towards it. On one side, the entire length of the street is formed by the side facade of the Old Town Hall with its official address on the Main Square. On the other side stretches the massive Church of the Holy Savior (Jesuit Church) with its address on the Franciscan Square. The only independent building that dominates the street and has an entrance here is the corner building with number 1 at the exit to Primatial Square. Philipp Lenard, a German physicist and the only native of Bratislava to win the Nobel Prize (in 1905 for research on cathode rays), studied at the Hungarian Royal Real School in this house. A memorial plaque is placed on the building in his honor.