Leaning Tower of Pisa no longer leaning
Well, it's not leaning any further than it already is. After the iconic building nearly toppled over in the mid-90s, engineers were able to tilt the building back to its 19th century lean and also halted future tilting.
Action was finally taken in 1992 (bracing the first storey with steel tendons, to relieve strain on its vulnerable masonry) and in 1993 (stacking 600 tons of lead ingots on the piazza to the tower's north, to counterweight the lean). Yet both measures, especially the lead ingots, riled the aesthete Italian public, deforming as they did the slender tower's bella figura.
In response, in 1995, the committee opted for 10 underground steel anchors, to invisibly yank the tower northwards. Little did they know, though, this would bring the tower closer to collapse than ever before, in an episode now known as Black September.