This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

A massive underwater sinkhole made famous by Jacques Cousteau.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Monasteries on rock pillars, once accessible only by frayed ropes.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Open-air museum with a large collection of Soviet-era statues.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Lithuania's outdoor sculpture trail of wooden folk art.

"There's nothing there," and other lies the KGB told us.

This monument is a stark reminder of the horrors of the Zanzibar slave trade.

A tall karst islet popularized by 007.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

An isolated dive site teeming with cnidarians.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

Once considered a marvel of engineering, there are now doubts about the structural integrity of this 5.4-mile cable-stayed bridge.