The world's first ice hotel is still one of the most elaborate and beautiful.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

It houses the remains of a 17th-century version of the Titanic.

12th-century holy complex shares land with a natural park full of heavenly waterfalls and raptors.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

This Funeral Hearse Museum represents the finest in cadaver transportation.

Stunning Roman aqueduct used for 1900 years and still standing.

Of course Salvador Dalí lived in a castle...

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

The final resting place of the great navigator, or maybe his brother.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Mountain where Jesus was first tempted by the Devil.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.