Climb right into the heart of this colorful Iceland volcano.

The most powerful waterfall in all of Europe.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Walk in the footsteps of the gods and straddle two tectonic plates.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

The remains of a 13th-century Romanesque church lie abandoned on a hillside.

This castle was designed to have as many windows as there are days in the year.

Outside of Budapest, a reconstruction of a 16th-century fortress.

The ruins of an early 1900s neo-Baroque mansion sit nestled in a local park in the Hungarian plains.

An abandoned cable car station located on the Danube stands like a haunted house above the river.

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

The only natural cave bath in all of Europe.

Hungarian self-built castle.

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

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

The abandoned military base looks like a post-apocalyptic wasteland.

This building has survived for more than a century and remains virtually untouched.