If you're visiting Mexico City October through November, you'll have a lot of places to check out. It's the most visited holiday festival in Mexico City and throughout Mexico.

I'll be listing them in this thread as they appear online in the coming days.

The parade route and times are usually the last to be "officially" announced by the mayor.

But generally, booking a hotel or hostel on the parade route is highly suggested, especially if you book a room with a street view. The crowds are huge. To get a front row seat you'll need to arrive by 9am. If you don't have anywhere to sit they sell stools for about $5.00. The parade doesn't start until after 12 noon usually. Starting location could be the Zocalo or Chapultepec park.

Edit: If you know of any Day of the Dead activity, please post them in this thread.