Started as a kitchen garden, now the second largest botanical garden in the world.

The most visited, and possibly most controversial, museum in Germany.

A surreal museum of extraordinary industrial objects.

Breathtaking Byzantine paintings cover the inside of this 12th-century church.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

A symbol for the opposition to nuclear power around the world.

In legend, this ancient dolmen was said to have been created when a troll tried to destroy a church.

Nordic giants resurrected from the sea and restored to their former greatness.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

This sublime architectural marvel is a rare example of an expressionist church.

Old Danish castle immortalized in Shakespeare's Hamlet.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This unique building in the main square stands out among the city's typically Baroque architecture.

This almost-forgotten underground dungeon housed several convicts over the years, including Caravaggio.

Dynastic Home of the De Piro Family.

Abandoned Roman Catholic chapel abused by Satanists before being restored.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

Ancient mysterious ruts carved in the bedrock.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."