This colorful statue welcomes visitors to a Barcelona park.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

This uncanny fresco celebrating the "triumph of death" was split into four pieces to be moved to another museum.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Thousands of well-dressed mummies below a monastery.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

The astonishing collection of an infamous criminologist.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

Macabre museum devoted to historical Viennese murders.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This former insane asylum now holds a pathological anatomy museum.

The solemn exterior conceals an opulent interior of this 17th century church.

An exquisite Baroque church in Vienna's old town.