This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Europe's oldest still-operational tea farm also boasts a spectacular view.

A 19th-century mansion houses the largest collection of gin in the European Union.

This abandoned five-star hotel is now a five-star urban exploration destination.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Stop by, and you'll receive a map to two well-preserved ancient petroglyph sites.

This enormous censer uses a pulley system installed over 400 years ago.

Ancient catacombs form the foundation for this Rococo orgy of a church.

The stunning interior of this Gothic church is covered in ornate gold details.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The world's oldest bookshop still in operation.

After the owner of this Art Nouveau home died, it was turned into a museum displaying a lifetime dedicated to art.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

An architectural gem nestled into a promontory overlooking a prehistoric landscape.