Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A sharp bend in a dramatic river canyon cut through red rocks.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A huge musical instrument played by the ocean.

One of the oldest and largest wooden churches in France was very evidently constructed by shipbuilders.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Makers and sellers of the original and finest York Ghosts.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Follow the original medieval paths that wind through this intriguing section of the city.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

A 16th-century horror show built in a lovely Italian garden.

This building features dozens of faces along its facade, although one is a bit chilling.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

A museum dedicated to the centuries-old cave dwellings that housed marginalized communities on the outskirts of the former capital of Muslim Spain.

A 16th-century Andalusian palace.

An eerie collection of the surviving structures from a past celebration of the future.

The world's largest wooden structure.