There are a ton of trails in the US that are worth exploring, but there are some that you simply can't miss. A selection of these was collected by Buzzfeed. A musical journey from rocking Cleveland to blues Memphis. Approximate distance: 735 miles (1 km). What to see:…

Not only New York can boast of an unusual building-iron. There are many representatives of this architectural refinement in San Francisco, according to SFChronicle. The most famous iron building in America is the Flatiron Building in New York City, Daniel Burnham's thin 22-story triangle at Fifth Avenue and Broadway, open in…

San Francisco office building owners have begun using Knightscope's K9 security robots to fight homeless people. Writes about this TechCrunch. The K9 robot patrols the territory allocated to it and, when it detects strangers, gives a signal to the security or police. The publication notes that the work of a robot costs much less than the work of a living person. ...