Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

The tallest sea cliffs on the Southern Hemisphere are a climber's worst nightmare.

The only pollutant in the clear blue water is sunscreen.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

A small, but award-winning beach known for its literally spotless reputation.

Occult books, tarot, oddities.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

An ancient city exhumed from the depths of the ocean.