Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

A tiny, hidden alleyway dedicated to the father of meteorology.

A 19th-century time capsule of travel, fiction, and historic texts still available to the public.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

A winding cave grotto walkway built to provide employment for veterans after World War I.

Led Zeppelin wrote some of their most iconic songs at this little 18th-century Welsh cottage.

The enormous earthwork sculpture honors the ponies that lived and worked in the old colliery.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

Metal water storage tank turned ethereal concert hall.

Even in death, he's still your huckleberry.

Scotland's only funicular railway is also the United Kingdom's highest.

An abandoned, desolate train tunnel that was used during World War II.

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

The highest lighthouse in Scotland shines from an abandoned island.

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

This eclectic sanctuary is a hodgepodge of various architectural styles, all crammed into one building.

These mysterious religious carvings were once thought to be thousands of years old but are actually the work of modern eccentric.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.