This library dates back to the late 17th century and was one of the first public lending libraries in England.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Christ's blood allegedly preserved in a Belgian town.

A beer pipeline runs beneath Bruges.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

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

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

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

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Iceland's tribute to its thankless civil servants.

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

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.

This magnificent mural was created with over 30,000 colored bricks.

One of the last doorless, continuously moving elevators still in use in the U.K.

This beautiful example of Victorian engineering is the oldest water-balanced funicular anywhere in the world.

This enormous sculpture honors an English town's engineering and industrial heritage

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.

A thousand year old oak tree survives in Liverpool.