The best-preserved example of a unique structure in Nubian architecture.

A remote monument to one of the fiercest battles fought by the Victorian British Army.

One of the largest early 20th-century bridges in Sudan.

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

This small roadside eatery exists in both the Northern and Southern hemispheres, as the equator runs right through it.

The home of half the world's population of critically endangered mountain gorillas.

This breathtaking island on Rwanda’s Lake Kivu is a haven for thousands of fruit bats.

A hiking/biking/exploring trail that winds across over 140 miles of Rwandan shoreline.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

This century-old site established by King Mwezi Gisabo preserves the art of Burundi's ancient drum rituals.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This snug medieval lane is one of the narrowest streets in the world.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Bridge that died in war and was resurected.

A 16th-century mosque rebuilt after wartime devastation.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

This spooky statue sits outside a famous Prague theater.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.