A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This 135-year-old weather station studied the effects of the climate on human health.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

A whimsical bridge adorned with decorative dragons.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

An unusual artwork dedicated to a unique man that entertained people visiting Cambridge while raising money for charity.

Inside this art museum resides one of Glasgow's most famous musical instruments.

The sole surviving medieval street cross in Scarborough.

This unique style of bridge is the last of its kind and runs over the straightest canal in Britain.

The bizarre headgear looks like it was made for a fool, not a king.

This device was crucial to the Industrial Revolution development of Leeds.

Glasgow's memorial to the International Brigade volunteers from Great Britain who fought and died in the Spanish Civil War.

Vibrant paintings stretch across 600 feet of derelict railway.

The Hveragerði fissure runs through this unassuming shopping center.

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

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

These enlarged egg sculptures represent the native birds of eastern Iceland.

This stunning concert hall has become a symbol of Iceland's national recovery.

A giant red chair bolted to a rock on a remote mossy hillside in Iceland.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

Three columns of volcanic rock shoot out of the ocean.

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