This historic black and white monastery is one of Bulgaria's architectural jewels.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

The shell of a medieval fortress offers commanding views of the area it once protected.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This often-missed monastery, set in a scenic mountain landscape, features unique frescoes, fortifications and legends.

One man's journey to return a stone to its point of origin after 200,000 years.

It houses the remains of a 17th-century version of the Titanic.

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

Bridge that died in war and was resurected.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

Brussels' favorite peeing boy has a sister.

The 10,000 Torii shrine.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

An encyclopedic collection of mammal penises.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

The largest whale museum in Europe allows visitors to walk among life-size giants.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

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

Atop this electronic store resides a massive fighter jet.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

Hidden deep in a forest is this geological wonder carved by glaciers.