A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Mysterious and ancient carved standing stones.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A bright little alley in La Boca is a part of tango history.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

These sculptures were created by a 17th-century artist who had never seen an elephant.

Is this cat asleep or just pretending?

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

The tallest mountain in mainland Netherlands isn't actually very tall.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.