Japanese city streets address are different from the US's. In Japan the streets don't have names, but the blocks are numbered. The houses on the block are not numbered in order of position but by chronological order. So if someone told you their address in Tokyo, they could say they were at house #1 block 17. That would mean they were the first house built on that block. #2 on block 17 could be on the other side of the block nowhere near #1. This could be very confusing for us American who give addresses by street name. In Japan, the street is just the space between the blocks. In the US, the blocks are meaningless.
Here is a good visual of this: Japanese Addresses