An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Constructed in 1923, this is one of several heritage drinking fountains across Mumbai.

A Zoroastrian funerary tower where excarnation rituals are carried out is threatened by the area's dwindling vulture population.

A crumbling monument to a now locally-extinct sport in Bulgaria's oldest ski resort.

While it would not look out of place among Serbian spomeniks, this massive Bulgarian monument commemorates one of their defeats.

The temple that withstood the Nazis.

Founded in the 4th-century, the town of Pernik plays host to the Surva Carnival⁠—a magnificent display of masked Kukeri dancers.

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

One of the largest mines in Bulgaria is now home to a vast museum more than 100 feet underground.

One kilometer of thick brass rod laid out before your eyes.

A room in New York City that contains 250 cubic yards of dirt.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A beautifully eclectic mix of architectural styles.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

Museum preserving torture methods from the past.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The abandoned site of the Beatles spiritual awakening and subsequent revolt.

A complex of six forts embedded in the Rajasthan hills.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

The remains of what was, not so long ago, the world's largest city.