In the 16th century, a Franciscan monk pulled off a construction miracle by building a Roman-style aqueduct to save the town of Otumba, Mexico, from certain death.

In a narrow river valley just north of Beirut, Lebanon, is a chronicle of human history unlike anything else in the world.

One of the world's best-preserved Roman amphitheaters is also one of the most unusual; it's made of black volcanic rock.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

Part home garden, part sculpture field, part pseudo-science experiment, a trip to this place will leave you wondering if sea water isn't actually the elixir of life.

Take the most scenic fjord landscape in Norway and add dramatic red cliffs, warm clear water, and playful dolphins.