Mineral springs believed to hold therapeutic properties draw in visitors from all over.

Popular river that runs through the remote Serbian municipality of Leskovac.

One of the best beaches in the entire world.

A clear example of the process of erosion in action.

Curious cave that stays a cool 56 degrees all year long.

Romania's only crater lake with water as pure as if distilled.

An unexpected desert oasis in South America.

Geothermal waterfalls in Tuscany.

Visit this playground of waterfalls, caves and sinkholes.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Small Chinese fishing village impeccably maintained for visitors.

A sacred mountaintop temple offers a fine cup of tea to visitors who can survive the journey.

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The first museum in the world devoted to sexual gadgetry.

This historic stone bridge has an entire neighborhood clinging to its sides.

Half curiosity cabinet, half late night hotspot, this Brazilian bar is helping turn a dangerous neighborhood around.

This luxury shopping lane has been protected by its own tiny police force for over a century.

This psychedelic tourist trap is a leisurely descent into madness.

Part bookstore, part café, and part forest.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.