Swiss vineyards in a UNESCO heritage site.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

A historic observatory precariously perched at the "Top of Europe."

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

The largest underground lake in Europe.

An abandoned village that resides along the mountains of the Aosta Valley.

High in the Italian Alps, a lonely chapel with a striking view of the Matterhorn.

Spiral alpine structure provides an alternative experience of viewing the Matterhorn.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The steepest classic funicular in the world glides along a dizzying incline.

Everything from alchemy books to building plans for the Eiffel Tower are housed inside this museum.

These spooky and unusual stone formations create an underworldly landscape.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Devilish masks, handicrafts, and pieces of old buildings create a snapshot of life in a historic Alpine region.

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

In one of the world's smallest countries, a royal's personal winery is open to the public.

The self-proclaimed gateway to the Extraterrestrial Highway.

Approximately 300 million years ago, a massive coral reef existed in what is now the largest limestone cave in Japan.

Caves famous for the dragon-slaying saint who lived there.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.