A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

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

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

The most powerful waterfall in all of Europe.

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

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

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

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

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

The largest timber structure in Europe.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

This giant wooden treehouse within a sprawling garden has its own eatery.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.

A beautiful medieval bridge allegedly constructed by the Devil.

This incredible viaduct was part of the Victorian railway boom and helped the Midland Railway navigate tough terrain.

The abandoned railway bridge stands hidden in the farmland of rural Cumbria.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

This rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.

These ancient rock graves were featured on the cover of a Black Sabbath compilation album.