The final resting place of the last "gypsy king" of Poland.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

A delightful museum entirely dedicated to the tiny homes of dolls.

A hidden art gallery in an abandoned Warsaw fort.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

One of the world's largest collections of medieval religious art.

The largest toy museum in Poland showcases Europe's history of childhood.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

The anatomical-pathological collection of a man who changed surgery.

A historic house left in "dramatic still life."

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Eighty million natural history specimens call this gargantuan museum home.

Catacombs turned marketplace.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

The curios of pharmacist and collector Henry Wellcome.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This South London cemetery holds the remains of more than 15,000 people.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.