A 29-year-old man has been charged after climbing on to the clock tower of Big Ben, the Metropolitan police has said.
Daniel Day, of Palmerston Road, Westcliff-on-Sea, Essex, has been charged with intentionally or recklessly causing a public nuisance and trespassing on a protected site.
Day is accused of scaling the Elizabeth Tower barefoot at about 7.20am on Saturday, and coming down just after midnight.
He has been remanded in custody to appear at Westminster magistrates court on Monday.