One man spent 10 years building a spectacular section of road because no one else would.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This witch statue remembers a time in England's history when fear trumped truth.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

17th century puritan church with connections to the Salem Witch Trials.

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

One of Oxford's greatest treasures likely belonged to the legendary King Alfred the Great.

One of Europe's oldest libraries.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This charming candle shop has been in business since 1789.

This small chapel is built of human bones and decorated with a golden skeleton.

Dead weights honor the dead of Portugal's fishing industry.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.