Home to three historic ships from the age of Vikings.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Singapore's landscaping project is home to 18 incredible Supertrees.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

The birthplace of the very first human resident born in Antarctica.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

A strangely forgotten claimant to the much contested title of "Source of the Nile."

The final resting place of soldiers who fell during the First and Second World Wars.

Over the course of its history, this tiny island has held enslaved people in transit and served as a quarantine zone. Today, it's a giant tortoise sanctuary.

This monument is a stark reminder of the horrors of the Zanzibar slave trade.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

Mount Tambora is the site of the largest and deadliest volcanic eruption in recorded human history.