Stoholm, Denmark
Mønsted Kalkgruber
Nearly 40 miles and 1,000 years of limestone mines under Denmark.
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Stoholm, Denmark
Nearly 40 miles and 1,000 years of limestone mines under Denmark.
Bad Bentheim, Germany
A church with a detached tower, believed to have been cast aside by the devil himself.
Mildam, Netherlands
Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.
Groningen, Netherlands
This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.
Zwiggelte, Netherlands
A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.
Buinen, Netherlands
The nerve center of a massive, state-of-the art radio telescope that sprawls across Western Europe.
Nieuwe Niedorp, Netherlands
An old, partly destroyed church, preserved in the state it was left in after a fire.
Winkel, Netherlands
This miniature take on the Kremlin is one Dutch man's retirement project.
Pontevedra, Spain
This small, lush island has a long and bloody history.
O Grove, Spain
A 12th century church completely covered in shells.
Brión, Spain
The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.
Santiago de Compostela, Spain
Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.
Santiago de Compostela, Spain
Small-town scandal, transformed into timeless pop art
Dumbría, Spain
This rough experimental house was created by flooding a dirt hill with concrete.
Laxe, Spain
Tiny Spanish beach covered in sea glass.
Yorkshire, England
A unique sculpture park that features the works of several famed artists.
Wanlockhead, Scotland
A memorial dedicated to a tragic World War II aviation accident.
Barnsley, England
These ruins are a monument to the region's industrial heritage, and the site of England's worst mining tragedy.
Barnsley, England
Graham Ibbesons's moving tribute to the victims of England's worst mining disaster.
Hull, England
Explore Hull's historic Old Town by following the sea creatures scattered throughout its charmingly cobbled streets.
Alston, England
A well-preserved 2nd century fort where moles are the archaeologists.
Robin Hood's Bay, England
This plaque commemorates an amazing 19th-century sea rescue.
Robin Hood's Bay, England
This coin collecting cod is over 130 years old, and the United Kingdom's smallest listed structure.
Scarborough, England
The sole surviving medieval street cross in Scarborough.