Behind a gray stone facade and up some plain steps can be found a riot of blue and gold -- the Chapel of the Old Royal Naval College.
Apart from the park, the observatory and the "replica" sailing ship, Greenwich is home to one of the grandest painted halls in the world.
After two years of being hidden from view under mountains of scaffolding, Greenwich's magnificent Painted Hall is to reopen to the public in March.
Spend an evening exploring some of the rarely seen parts of the Old Royal Naval College in Greenwich.
One of those quite literally Once-In-A-Lifetime opportunities comes to an end in just three months time.