This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Fortified medieval tower house with lovely roof garden.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

The bright red cars take travelers through breathtaking Tuscan scenery.

A forest of immensely tall and unusually straight oak trees planted nearly 200 years ago to build naval ships that never came to be.

Sweden's "good old days" painstakingly re-created in a model village.

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

The largest greenhouse in the world is home to over one million types of plants.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

This historic factory peddles classic toys from the picturesque English county of Devon.

This tangled English forest looks like something right out of a fairytale.

Eighty million natural history specimens call this gargantuan museum home.