Just because you're taking a bathroom break, doesn't mean you can't also be treated to stunning views of the world's largest ...

While debated in the scientific community, it's possible that Toba quickened the approach of the Earth's last ice age. Today, the massive caldera left behind by the eruption is filled by Lake Toba ...

2. What caldera nearly wiped out the human race? Lake Toba in Sumatra, Indonesia is believed to be the largest resurgent caldera on earth. The caldera measures 100km long by 30km wide. This ...