On an idyllic island off the coast of Sierra Leone, remnants of the defense of the slave trade and its later abolition.

A rehabilitation center for confiscated, orphaned, and abandoned chimpanzees.

The first European-style university in western Sub-Saharan Africa.

A seaside cemetery honors the Commonwealth soldiers and sailors that died in Sierra Leone during World War I and II.

Built by Portuguese colonizers, the palace is now the seat of power for the independent nation.

This small building is a living testament to the remoteness and warmth of the town that it represents.

A 19th-century architectural masterpiece with ties to Gustave Eiffel.

An architectural relic that survived the hands of time.

This remarkably well-preserved mosque stands amid an 11th-century caravansary.

A geological bull's-eye visible from outer space.

The second largest monolith in the world was once betrayed by its lover, Ben Aicha.

A resort destroyed by a mysterious bombing offers visitors only its remains and the riddle behind it's demise.

A breathtakingly steep set of stairs is carved directly into the face of the sea cliffs of Bonifacio.

The largest cave on the island of Menorca was likely the site of Iron Age rites and rituals.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

This historical manor is complete with a magnificent garden.

This historic electric train has operated with regularity since the early 1900s.

A contemporary art installation housed within a Gothic cathedral.

This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

Originally slated to become a luxurious resort, this structure is now a graffiti haunt reclaimed by nature.

The abandoned club hides in the hills of Ibiza.

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

A scenic canyon with thick forests and historic ruins.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.