Danube Sinkhole Danube Sinkhole The Danube Sinkhole ( or ) is an incipient underground stream capture in the Upper Danube Nature Park. Between Immendingen and Möhringen and also near Fridingen (Tuttlingen), the water of the Danube sinks into the riverbed in various places. The main sinkhole is next to a field named "Brühl" between Immendingen and Möhringen. The term “sinking” is more accurate than “seeping”, because, instead of just distributing into the soil, the Danube’s water flows through underground caverns to the Aachtopf, where it emerges as the river Radolfzeller Aach. The sinking Danube water disappears into a karst water system of
Collapse! the two. Collapse! Collapse! is a series of award-winning tile-matching puzzle video games by GameHouse, a software company in Seattle, Washington. In 2007, "Super Collapse! 3" became the first game to win the Game of the Year at the inaugural Zeebys. The series has been discontinued since 2015 due RealNetworks shutting down its internal games studio. In 2006, a spin-off series called Super Collapse Puzzle Gallery! was developed into 5 games. The classic "Collapse!" game is played on a board of twelve columns by fifteen rows. Randomly colored blocks fill the board, rising from below. By clicking on a group