This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

Its interior is adorned with some of the best examples of early Christian mosaics.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

At this museum in Iceland, visitors can sample fermented Greenland shark.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

Eerie ruins of an abandoned medieval fishing village crumble atop an unforgiving stretch of earth.

The summer tourists on these cliffs are thousands of seabirds.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

This replica Viking village was created for a film that was never shot and is now open to visitors.

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

This educational and eco-friendly community is Iceland's "home of the sun."

On an island south of Iceland, a large volcanic rock formation resembles an elephant.

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

One woman's lifelong collection is on display in this unassuming house on an Icelandic fjord.

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

This canyon is comprised of gorgeous waters and magnificent basalt columns.

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.

Iceland's tribute to its thankless civil servants.

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