Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This fairytale-like structure is the last turf church ever constructed in Iceland.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

The flow from this waterfall sometimes comes out of springs below its rim.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Along this wire fence, travelers have been leaving a particular memento since 2012.

Iceland's tribute to its thankless civil servants.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Medicinal spa created with the discharge from a geothermal energy plant.

Take a monster truck tour around an ostrich farm in the middle of the desert.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

A self-built castle made by a mysterious man.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.