London's great Gothic abbey is packed with the tombs and monuments of British monarchs and some the world's most famous playwrights, poets, scientists, and other notables

Set your watch by the actual Greenwich Mean Time clock, straddle the Prime Meridian line that divides the eastern and western hemispheres, and tour the fascinating little museum about it all

The world's oldest scientific zoo (as opposed to some royal menagerie) is home to more than 750 species

See the coat in which Nelson was shot, bullet hole and all, along with some fantastically beautiful old astrolabes and an indescribably cool interactive display on the Battle of Trafalgar

The Hampstead home where Freud spent his final year retains the actual couch Freud used during psychoanalysis sessions