Kanda Myojin (Often called Kanda Shrine) is a shrine located between the Akihabara and Ochanomizu areas of Tokyo. The shrine is best known for its Kanda Maturi (Kanda Festival) held during mid May.
The Shrine was allegedly established around the year 730, although the current building was rebuilt after the Great Tokyo earthquake of 1923. The shrine is believed to bring good luck with business and wealth; in fact, one of the 3 deities enshrined at Kanda Myojin is Daikoku-sama, the god of wealth.
Kanda Myojin is a 5 min walk west from the Suehirocho station on the Tokyo Metro Ginza Line. From Ochanomizu Station on the JR Chou-Sobu Line or Tokyo Metro Marunochi Line, the shrine is a 5 min walk North East.
A suggested visit to the area would be to get off the JR Chou or Yamanote Line at Akihabara and walk north up Electric City, before heading west along Kuramaebashi Dori to Kanda Myojin. On your return trip, try heading south via Ochanomizu Park and Yushima Seido temple to Ochanomizu Station.
Official site
http://www.kandamyoujin.or.jp/english/e01.html