Tiny castle in the middle of the Rhine made you pay to pass.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

The last bastion of Roman presence north of the Alps looms over a German town.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

Go surfing on this urban wave, "hacked" by local surfers.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

This "floating railway" is one of the world's oldest monorail systems.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

The geoglyph once sported a glass bottle eye.

Ancient human remains unearthed around the iconic monument.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Both church and state get put to the torch in this annual festival in the "Bonfire Capital of the World."

Amazing collection of folly buildings in Cobham, Surrey.

One of the oldest trees in Britain may have been witness to some of the country's formative moments.

The first archaeological site discovered by aerial photography.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

The oldest working mechanical clock in the world.

Europe's largest prehistoric mound – burial site of a legendary king?

Luxurious hotel designed to stir the imagination of its many visitors.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Repository for more than 22 million pickled specimens.