Pedro Lascuráin had the shortest Presidency of less than one hour (sources quote ranges between 15 and 55 minutes), of which country, thus giving it three presidents in one day on 18 February 1913?
David Marks, Julia Barfield, Malcolm Cook, Mark Sparrowhawk, Steven Chilton, Frank Anatole and Nic Bailey were the architects of which London landmark that was opened on 31 December 1999?
