Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

Heralded as one of the prettiest castles in all of Czechia.

A mansion where wonders of Christmas are celebrated all year long.

Tiny communists hammer away on the Olomouc Astronomical Clock.

Be(w)ar(e) the moat around this historic Czech castle.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

Bohemian paradise covered in majestic forests.

An Orwellian sculpture with eyeball cameras watches passersby.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

The tallest freestanding structure in the United Kingdom.

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.

A copy of the brutal decapitation device that predated the French Guillotine by about 200 years.

This Georgian architectural masterpiece is the only cloth hall left in Britain.

This tallest folly in the world began its life as an elaborate factory chimney.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.