A Museum of Psychiatry in a still-operating mental institution.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A rare example of World War I trenches from the British front.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

A moving memorial to the fallen and missing from WWI trenches.

Science fiction's grandfather has a fittingly marvelous tomb.

The encased skull that is widely believed to belong to St. John the Baptist.

An abandoned socialist utopia built in the late 19th century.

The deserted remains of a luxury hotel turned hospital ward.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

The morbid items in this small and hidden museum are not for the weak stomached.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The world's oldest bookshop still in operation.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

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

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.