Classical ruins that remember ancient Rome's presence in Africa.

This former cathedral is now a bustling library packed with students and pigeons.

A century-old stone hermitage overlooks this remote pass in the Hoggar mountains, surrounded by a landscape of eroded volcanic cores.

The abstract sandstone rock formations at this Algerian national park are rich with prehistoric art.

This dizzying span over the ancient Algerian city was once the highest suspension bridge in the world.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

This remote church calls a tiny island its sanctuary.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

You can find more than 200 species of tropical plants at this garden owned by a former ambassador.

This salt lake in South Australia features seasonal color changes and its very own loch monster.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

These natural wonders have taken millennia to form into the stunning marvels they are today.

This museum documents the ancient practice of salt production in Figueira da Foz.

The largest seated Buddha statue in Japan is the centerpiece of an abandoned complex in a quiet, seaside town.

La Cara del Indio honors the Taíno chief who fought bravely against the Spanish invasion of Puerto Rico.

This concrete monster of a wreck lies in the mouth of Langstone Harbour as a monument to the incredible history of D-Day.

The ruins of a military outpost from the 1860s form the centerpiece of a Nevada state park.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

The short hike is worth the stunning views and crystal blue waters of a secluded beach.

Enjoy the waters of this half-moon-shaped natural pool surrounded by breathtaking scenery.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

Drift through underground caves on a tube.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.