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

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

One part local history, 99 parts gruesome haunted house.

The patron saint of spinsters grasps a container of dried blood.

The prototype for all Nazi concentration camps.