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

The Habsburgs' royal collections of art and wonders.

Site of the 1889 murder-suicide of crown prince Rudolf and his lover Mary Vetsera.

The world's oldest known salt mine.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

Go inside to really appreciate this 500-year-old technological masterpiece.

100 year tradition of fist fights, marked by marble footsteps.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Hunt for buried treasure in Nova Scotia.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

Rusty red sands line the shores of this Canadian Province.

This rocky spread has been squeezed up directly from the bowels of the earth.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Stonehenge has nothing on Castlerigg’s views.

This single room has survived the centuries with almost no deterioration.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.