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

Picturesque intersection of witchcraft and ancient Christianity.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

This charming candle shop has been in business since 1789.

The world's oldest bookshop still in operation.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

Zurich's evolution museum hosts a unique collection of skeletons among its natural history treasures.

The excellent Swiss museum of witchcraft is led by a modern witch.

Abbey built on the ruins of Roman catacombs.

This elderly couple's hand-picked collection of rare gems is one of the finest in all of Iceland.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Staves, storm-calling, and of course, necropants.

The oldest bookstore in Iceland.

Inside this museum, visitors venture through ghost stories entrenched in Icelandic folklore.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

An Icelandic island full of diving birds and legend.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Walk through a restaurant's refrigerator door to reach this hidden bar.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.