Šestak-Grotte
Šestak-Grotte is a grotto in Vienna's district Favoriten in Austria, located on Laaer Berg (Laa's mountain), next to Fachhochschule Campus Wien (address: Favoritenstraße 226). The grotto is reachable from tramway stop "Altes Landgut" of line 67 by a 5 min walking distance. Inside the place of worship there are some statues and sacred images.
According to Beziaksmuseum Favoriten ("district museum of Favoriten") the grotto was built by the many polish workers, who were involved in the construction of the Fachhochschule in 2008/2009. That would not be 10 years ago, although it looks as if it were centuries old.
Perhaps the grotto is older, but at most from the 1970s, because at that time the dam to the then built city-highway "Südosttangente" was poured up. According to an entry on geocaching.com, it should have been erected on the occasion of a death by a company named "Säckl".
The name "Šesták" is a mocking name for Favoriten, because there lived much Czechs, working in brick klins. Šesták was the designation for the Six bright coin. The name Šestak-Grotte has became popular, since the home explorer Michael Haas has mentioned it.