The U.S. State Department has posted on its Travel.State.Gov web page with links titled LGBT Travel Information:
Attitudes and tolerance toward lesbian, gay, bisexual, and transgender (LGBT) persons vary from country to country, just as they vary among U.S. cities and states. Most LGBT travelers encounter no problems while overseas, but it helps to be prepared and research your destination before you go.
There are a number of countries that provide legal protections to those who are LGBT. Unfortunately, there are others that do not, and a significant number that even criminalize consensual same-sex sexual relations. Persons convicted in these countries could be sentenced to prison, and/or be punished by fines, deportation, flogging, or even sentenced to death. Before choosing one’s international destination, LGBT travelers should carefully consider the laws and biases of their international destination and decide how open one can be regarding one’s sexual orientation or gender identity. Personal judgment and knowledge of local laws and customs before one goes will help ensure your safety.
Among the topics: "Before You Travel," "While You’re There," "Immigration Issues"