The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

Copenhagen's celebrated theme park and gardens.

The library's graceful rotunda is like a bibliophile's temple.

The world's largest model of our planetary system.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

A lonely beacon, precariously perched atop a remote sliver of rock.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

The Arctic Circle runs through this isolated spot north of Iceland.

These concrete domes were installed on an Icelandic bluff to honor a very specific musical tradion.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

Three million year old fossils are exposed for all to see on this Icelandic shore.

Climbing Iceland's highest peak on the rim of the Oræfajökull volcano.

This elegant arc of a waterfall marks a religious turning point.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

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