Macabre museum devoted to historical Viennese murders.

The final resting place for the remains of 143 Habsburg royalty.

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

The beautiful baroque library of the Hapsburg empire.

A vintage penny arcade hidden in the back of a fun fair-themed bar.

A private selection of curiosities, carefully curated by a young Brighton local.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

The natural history museum displaying the British bird collections and dioramas of Edward Booth, free of charge.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

Regency-era excess on the English Coast.

A true Valhalla for cactus and succulent lovers.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A floating cat sanctuary on an Amsterdam canal.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Museum preserving torture methods from the past.

A curious collection dedicated to human and animal anatomy and pathology.

The world's only museum devoted to the wonders of fluorescence.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Week-long block party becomes a competition for the best decorated street.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

This cemetery features modernist statues as strange as its name.