I just saw this bitcoin globe https://blockchain.info/nodes-globe?series=topBlockRelay It has two modes,"Online Now" and "Miners". I wanted to ask if anyone knows what the bars and colors stand for and if there are any APIs which I can get those data. Thanks
That "information" being shown is effectively useless and therefor isn't made available in any consumable form. What is being shown is the GeoIP lookup of the node that a block or transaction was relayed to Blockchain.info, and the frequency at which that location appears in their database. It doesn't reveal the location of the originator of either inventory item, or provide anything worth knowing about the state of the network or its users.
http://getaddr.bitnodes.io/ shows the approximate locations of many (but not all) listening Bitcoin nodes, which is about as close to reliable data as you can get for this sort of network.