An estimated thousand tons of "oily solid food waste" has completely plugged up a portion of the sewer below London's Leicester Square. The fat (enough to fill up nine of London's double-decker buses) created a dam that threatens to cause sewer spills and flooding, so the Thames Water company is solving the problem by hiring a team of "flushers" to go down and shovel it out.
"We're used to getting our hands dirty, but nothing on this scale," a sewer flusher told National Geographic. "We couldn't even access the sewer, as it was blocked by a 4-foot-thick wall of solid fat." Click the link for several photos of the offending mess—but not while eating. (Read more London wall of fat stories.)