Athena Bitcoin plans to invest over $1 million to install cryptocurrency ATMs in El Salvador, especially where residents receive remittances from abroad, a company representative said on Thursday. According to Athena Bitcoin's website you can use their ATMs to buy bitcoins or sell them for cash. The firm expects to gradually install some 1,500 ATMs, hire staff and open an office to carry out operations in El Salvador, which in June became the first country to adopt bitcoin as legal tender.