Culture activities in Tokyo at night?

I will be on a business trip to Japan in October. We are spending 6 days in Tokyo--busy during the day--so I am looking for cultural activities to do at night--NOT bars/dance clubs. Any suggestions on things to do after 5p.m.?

You'd better put your interests.
I suggest "Mori Art Museum" in Roppongi-hills building. This mus of contemporary art is opend untill 10pm, except Tue (untill 5pm).
http://www.mori.art.museum/eng/index.html

Others:
http://www.syabi.com/navigation/navigation_eng.html

http://www.nmwa.go.jp/en/

Other reccomendation will be theaters. Anyway, put your interests.

Thanks for the museum links.
I am also interested in theater, sports, any type of live shows in Tokyo in the evening... Any suggestions?

Catch a baseball game at Tokyo Dome.

http://www.tokyo-dome.co.jp/cgi-bin/schedule/User/dome/sched...

Even if you don't like baseball, go for the experience of seeing a baseball game in Japan.

I can't understand "any type live shows" , anyway, Blue Note Tokyo is in Aoyama.
http://www.bluenote.co.jp/jp/schedule/
I guess its charge for any popular groups are much expensive than Blue Note in US.

Sports... hmm, watching baseball games just came to my mind.
And bowling?
Billiard bars and darts bars are there,too. But you said "No bars" so I've no idea for that.

How about Kabuki?!
http://www.shochiku.co.jp/play/kabukiza/theater/
You perhaps be late at its beggining...humm.

As for theaters, Japan has less originals than US, UK, or Europe. We have many acts come from other countries.
If you understand Japanese lang., comedy theaters would be nice.

Theather examples:
http://www.japantimes.co.jp/advanced_booking-kantoarts/listi...
http://www.asiarooms.com/travel-guide/japan/tokyo/entertainm...

Fan activities and shows in Tokyo will take your money very much.

Try a Hato Bus Night Tour of the city.