Sitting empty in a lonely Canadian field is a century-old stone bunker sometimes called "One Man's Castle."

This ghost-town bar has bullet holes and plenty of stories lurking within its walls.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

The final resting place for the remains of 143 Habsburg royalty.

Thousands of well-dressed mummies below a monastery.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Stalactites and stalagmites in a beautifully lit cave.

A fantastic castle rumored to be the birthplace of King Arthur.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Renaissance villa and gardens complete with a tormented colossus.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

An enormous park-like oasis, full of famous Chicagoans' graves.

Walk through Czech history in Prague's largest graveyard.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

The angel of death appears to weep black tears at this grave marker.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

Tubing through a cave lit with glowworms is a magical underground experience.

Monasteries on rock pillars, once accessible only by frayed ropes.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.