Copenhagen's celebrated theme park and gardens.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Traditional 11th-century outdoor tannery.

There is only one place in the world where the corners of four nations come together.

Tropical paradise strewn with hundreds of World War II wrecks.

Giant money stones of Yap.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

One Costa Rican island is so beset by illegal shark poachers that the local rangers have built an entire bridge with their confiscated gear .

Orcas on display and in the water.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.