"We’re old enough to remember when the “design hotels” in Germany were among the most conservative in the world, all tasteful seriousness and aloof minimalism. That, of course, was before the 25hours era began. This homegrown boutique-hotel chain brought new life and plentiful personality to the hospitality world all across Germany — including Cologne, where 25hours Hotel The Circle is an audacious redevelopment of a landmark building whose rotunda gives the Circle its name." - Tablet Hotels