This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

Ukraine's oldest operating pharmacy now offers guests a fascinating walk through apothecary history.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

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

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

The solemn exterior conceals an opulent interior of this 17th century church.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

This Ukraine alleyway has become its own little island of forgotten things.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

The beautiful baroque library of the Hapsburg empire.

The first green space constructed on an elevated viaduct.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

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

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.