Unusual rock formations eroded into a landscape of stone beasts.

Museum precariously perched on a massive yellow pillar.

At 705 feet high, Brazil's "House of Stone" is the largest cave mouth in the world.

A huge boat-shaped hotel with a blood red pool and other oddities.

The largest library in Latin America owes its existence to an Old World earthquake and a Napoleonic invasion.

High plateaus and beautiful waterfalls frame this ecologically significant nature preserve.

An art museum with an eclectic design and a scandalous past.

Site full of incredible prehistoric paintings and archeological findings.

The haunting peak of an old church is all that remains of a drowned Brazilian city.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

These termites have an large and deadly abode—impressive by day, dazzling by night.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A mysterious stele of unknown origin sits on the peak of this curious mountain.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

The home of a neoclassical master is now a shrine to his chosen art style.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Windblown rock formations in an ancient Roman quarry.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.