The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Hot springs monkey spa in the middle of Hell's Valley.

Started as a kitchen garden, now the second largest botanical garden in the world.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

These fantastically named natural pools look like something out of a Scottish myth.

Flip your own pancakes in this old sugar mill within a Florida state park.

A nude beach alongside a washed-out road.

This divisive system of turtle tunnels was built to save animals stranded after a highway split a lake in half.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

These simple structures are living monuments to the fishermen who built this community over a century ago.

The oldest house of worship in Palm Beach has a wonderful tropical garden.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

This small museum concentrates on the juicy history of orange production in Florida.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

Ancient church constructed with a special wood that preserves prints from the past.

A tribute to the furry local heroes who helped get residents through many tough times.

This Florida resort community is where the Amish come to have fun in the sun.

Location of a reliquary containing bone fragments of 18 saints.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.