Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

Three columns of volcanic rock shoot out of the ocean.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

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

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

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

The final resting place of the controversial chess champion.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

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

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.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

The last Victorian market in Belfast.

A museum marks and documents the site of the Titanic's launch.

The house where the writer spent his formative years.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

An architectural oddity hides in plain sight on this iconic London bridge.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.