Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Figures of unknown origin carved into the surfaces of underground caves.