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

This medieval "painted village" is famous for its geometric facades.

A winery built on the site of a Gallo-Roman estate uses historical tools to recreate ancient vintages.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Sleep in a glass pod dangling off a cliff.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Roman ruins top white travertine terraces formed by ancient hot springs.

With print dying, this local paper keeps the lights on by doubling as a stunning cafe and cocktail bar.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A kaleidoscopic warehouse-maze of handmade neon signs.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

More than a century old, this cast iron bridge on the Balmoral Estate leads to nowhere.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This charming candle shop has been in business since 1789.