Greater Tokyo is listed as having a population of some 37 million - exactly why the word 'megalopolis' was coined. You can go out every weekend to look at a new district and never run out of options, particularly with the public transport system which must be the most comprehensive one on the planet. The first thing that you notice is the concrete boxy architecture (new-build after the city was razed in WWII) or, if you are out at night, it will be the neon. It's a totally vibrant, in-your-face experience, but there are also plenty of quiet ​nooks and crannies to see off the beaten track.

Street music festival, Shibuya

Shinjuku

Shimo Kitazawa

Imperial Palace

Funabashi

Halloween, Roppongi. Go there on the 31st October for a completely mad evening!

Right: "Don't look now but you can see Fuji-San
​out of the window!"

Skytree, Sumida

Ginza

4-way zebra crossing, Shibuya

Abbey Road, Roppongi

Street music festival, Shibuya. Below: Shinjuku

Dance troupe, Tokyo Dome. Below: Big Sight Ariake Minami; Asakusa; Shinkanzen at Tokyo Station

Azalea Festival, Nezu Shrine. Below: Meiji Jingu

Ueno

Good old Yamanote Line - round and round we go!

Map of public transport - well used! Various apps make your connections for you, but it is invaluable having the map to hand.