This former medical factory gives home to cutting edge arts in the shadow of a gas works.

The commemorative stone column conceals a secret laboratory.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

The farmhouse owned by the Danish author who wrote "Out of Africa" is now a museum honoring her legacy.

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

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

Just outside of Nairobi lies a large estate surrounded by endangered Rothschild giraffes, who have been fed from the window by Mick Jagger and Walter Cronkite.

In Stone Town, Zanzibar, the city’s culture and history is told through its doors.

This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

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

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

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

The actual “Hotel Rwanda” that became a hiding place and refuge from the horrors of genocide in 1994.

This center in the Rwandan capital supports women’s livelihoods while educating visitors about traditional cooking, craft making, and more.

The burial ground of four Buganda monarchs was nearly destroyed by a devastating fire.

An operating lighthouse from the 1860s.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

Surprisingly delicious Asian-style hot dogs.

This lurid German fountain plots the sad course of marriage from dating to death.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.