The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Atop a small Armenian hilltop adorned with many forms, and carvings, these stones tell a whimsical tale from a fictional world.

Armenia's premier center of astrophysical research was established during the Soviet era.

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

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

A geological oddity topped with a 2,000-year-old pagan temple.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

An artsy hidden staircase leads to breathtaking views of San Francisco.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Nicolas Schöffer's massive interactive sculpture was assembled in 1961 and brought back online in 2016.

This non-profit theatre in the heart of Brussels is dedicated to hosting independent films.

This museum is housed in an unassuming building that witnessed one of the most daring feats of satire in modern history.

A fascinating and enormous collection of natural history exhibits stained by a dark colonial legacy.

This annual Belgian water race attracts bathtub captains from all over the world.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

Housing the groundbreaking maps and globes of Gerard Mercator.