This is the Painted Hall. It was designed by Sir Christopher Wren and took nineteen years to finish. It's pretty spectacular and free to visit so have a look if you're nearby. It's actually the bit behind me in this photo that is most impressive as well as the ceiling.
Ready to work up an appetite, we headed through Greenwich Park up to the observatory and the exact location where east meets west (this is, of course, where we get 'Greenwich Mean Time')
One foot on east, one foot on west!
Ready for some well-deserved food, we headed back down the hill and into the market.