This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Once frequented by heavyweights of the Russian arts scene, this café is stuck in the 1800s.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

The beautiful baroque library of the Hapsburg empire.

Visiting this café is like visiting the Austrian grandma you wish you had.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Macabre museum devoted to historical Viennese murders.

The final resting place for the remains of 143 Habsburg royalty.

These Victorian era devil sculptures were designed to spite a local vicar.

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

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

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

This legendary dessert was served to Nobel laureates for decades.

The apartment where Pippi Longstocking came to life.

No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.