Frozen bubbles in Canadian lakes - Methane gas bubbles underneath Vermillion Lakes in Banff National Park, Alberta, Canada. Normally the bubbles would break the surface but in low temperatures they freeze.
This is a great way to travel the world from the classroom, allowing students to see snippets of daily life and atmosphere from places far away. Students can upload pictures as well, making them part of a world effort, which to me is a wonderful opportunity for students.
Elephant Nature Park, Chiang Mai, Thailand - a haven for elephants rescued from abusive situations. If you are interested in ethical travel, you may wish to research the elephant situation in Thailand before deciding to ride one.