katieparla: the place is slammed for lunch so go before 1230 or after 2 to avoid long lines. there are diverse toppings, which change regularly, but don't overlook the simple pies like the rossa, which is divine.
People: Come for the changing of the guard—and stay for the perfect photo op outside the official residence of the British monarchy. Tip: Tours inside state rooms are available mid-summer to fall.