A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Baroque celebration of the end of the Great Plague of Vienna.

Handsomely crafted representations of our round planet.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

The house that took a plunge into the facade of a museum.

A breathtaking viewing platform over the Alps.

Part ski resort, part modern art space, this lodge brings giant metal spiders and bloody doors to the Austrian Alps.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

The medieval network of canals hidden underneath the city is opened to explorers each year.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

The shell of a medieval fortress offers commanding views of the area it once protected.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

American soldiers discovered Europe's best one-liner at the end of World War II.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

Visitors dip into a variety of pools of what was once ice.

Ride a dragon train into a world of dwarves.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

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

Artfully arranged bones of 5,800 Austrians.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Where beer lovers can literally immerse themselves in beer.