This simple apartment may have inspired some of the most important theories in the history of science.

A mythically themed self-built sculpture park.

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

Swiss vineyards in a UNESCO heritage site.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

World's largest permanent maze made of 18,000 conifers.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

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

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

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Large Hadron Collider and the Birthplace of World Wide Web.

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

This French chateau is home to the world’s largest private collection of fighter jets.

Existing for more than four centuries, the last of Hakone’s historic teahouses serves a sweet, mold-based rice drink.

A total of 22 tiny bridges cross this canal of the Yvette River, forming a unique trail.

This natural monument has an origin story steeped in legend.

Once the site of a 12-century monastery, this tiny island is now home to only five permanent residents.

This World War I fortress is the perfect place to catch a Montenegrin sunset.

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

This memorial to local World War II heroes is slowly being reclaimed by nature.

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

On top of a resort town as old as the Bronze Age sits an incredible war memorial statue overlooking the beaches below.

One of the world's oldest olive trees, thought to be over 2,000 years old.