This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

The geographical centre of the Grand Duchy of Luxembourg is marked by this metal point

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

Where members of the Crossbow Corps of San Marino demonstrate their skills.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

A historic cavernous cistern lies hidden behind a wall at San Marino’s stamp and coin museum.

Engineering ingenuity during the battle of Gibraltar.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Two panes of the massive Cold War artifact are on display at the National University of Singapore.

Across this single-file rope bridge is what has been claimed to be the edge of continental Asia.

This mesmerizing architectural wonder will take your breath away with its unusual color patterns.

This popular shopping mall and eatery once provided scant comfort to sick colonials and seafarers

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

The site where the summer solstice helped ancient Greeks sync the lunar and solar calendars.

These caves secretly held national treasures during World War II.

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

Fantastic views and thousands of love locks.

Dedicated to the outnumbered Finnish forces who pushed back Soviet forces during the conflict.

Hundreds of signs pointing to the birthplaces of current Helsinki residents form stalactites on the ceiling of the cave-like Kamppi metro station.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.