You can discover a lot about scientific advances from going on a tour of a medical facility. Check to see if University College Hospital is open to the public while you are in town.
This Fitzrovia health care institution is a good spot to begin your day of sightseeing. There's loads to see close by, like Buckingham Palace, Tower of London and Big Ben. Wander around at your leisure at University College Hospital before hitting up these other fine attractions.