17th century streets hidden under Edinburgh were once a breeding ground for the black death.

360° views of the city plus five floors of optical illusions and hands-on science.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

Conveniently located within binocular range of a nuclear bunker, the "summer camp" area was a painfully obvious spy house.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

One man's lifelong collection of 10,000 rare steins tells the story of beer drinking from 1350 to today.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

The final resting place of a controversial man who was instrumental in plucking the banjo from obscurity.

Anna Anderson spent most of her life claiming to be the lost Romanov child Anastasia.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Local legend says the remains of Father Christmas lie within the medieval grounds.

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

This 5,300-year-old tomb with mysterious carvings crowns an Irish mountain.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

This museum is dedicated to the most famous Irish writers in history.

One of Ireland's most infamous prisons for rebels including men, women and children.

An unusual manor of stunning beauty, born out of a crippling disease.

This 14th century tower house was once the home of Irish poet W.B. Yeats.