One of the biggest Buddhist stupas in Europe, hidden from most locals.

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

The only natural cave bath in all of Europe.

The massive white mound and accompanying water terraces are a striking geological oddity.

A stubborn Ottoman tower with a punishing climb and a view over Eger

An industrial site turned into Hungary's most cherished natural wonder.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A unique work of automotive art calls this shopping center home.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

In the middle of a wonderful recreational park, this memorial reminds us of the dark past of this place.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Every year, a sparkling cave is sculpted in the icy heart of a glacier.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

A dead saint, a deadly poison, and a mysterious holy ooze.

A tiny church on a man-made island in the Adriatic.

The hairpin turns in this mountain road take the shape of a letter—is it a coincidence or a symbol of love?

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.