This Stockholm light tower can be controlled by anyone with a smartphone.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

The exhibition explores the Icelandic city's Viking Age history.

This beautiful, historic church looks like something out of a simpler past.

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

Iceland's tribute to its thankless civil servants.

Walk in the footsteps of the gods and straddle two tectonic plates.

The most powerful waterfall in all of Europe.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Largest lake in Great Britain measured by surface area.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The heads of two giant mythological water horses honor Scotland's horselord past.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A dazzling display of lights and crystals.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.