This picturesque island graveyard is the final resting place of dozens of notorious pirates.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

This extraordinary geological oddity resembles human-made pavement.

A natural rock bridge towers above the sea.

The world's first cageless zoo is working to save endangered Tasmanian devils.

Many rock climbers have come to conquer this slender sea stack, with various degrees of success.

It's said that visitors can "see" Tasmania inside this cave.

It's beautiful, it's haunted and its claim to fame is that it's the oldest existing stone arch bridge in Australia.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.

A small troop of Japanese macaques live peacefully in the heart of this Tasmanian city.

A granite waterfall cascading down is one of the highest multi-tiered falls in the state.

A beautiful, but toxic, lake formed by mining.

This 7th-century monastery was sacked by Saladin.

This North African stone complex is considered to be the oldest astronomical observatory on Earth.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

The deadliest diving spot in the world is also a stunning geological marvel.

The once great capital of Egypt now crumbles forward as evocative ruins.

The largest known Ancient Egyptian obelisk.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

This ancient structure is widely thought to be the oldest intact pyramid in the world.