A lover's walk between hilltop towns, decorated with graffiti love notes.

Machismo turned on its head: the lady's hand goes to the dude with the bigger brain.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

An abandoned guano-mining city in the South Pacific.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

This ghost town in Belgium will lose its street art when it ceases to exist.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

Legendary site where an evil bishop was devoured by rodents.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Tiny castle in the middle of the Rhine made you pay to pass.