Mysterious 500-year-old tapestries depict a unicorn hunt.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

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

A little sculpture with a large wardrobe.

An ancient knight and a symbol of the city's freedom.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Pompeii's less famous neighbor is still revealing her secrets.

The glowing blue Nymphaeum of Emperor Tiberius.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Sweden's "good old days" painstakingly re-created in a model village.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

It houses the remains of a 17th-century version of the Titanic.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

A diverse collection of wax, bone, papier-maché and mummified relics.

An extraordinary collection of 18th century anatomical waxworks.

An amazing collection of wax anatomical models and terratological models.

This zoological museum began as the first great curiosity cabinet.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Historic medieval fortified city in southwest France.

Ancient paintings known as the "Sistine Chapel of Cave Art."

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.