This sprawling bookstore spans four floors and has more than a million books in stock.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

These pretty kitties killed and ate as many as 135 railway workers.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

A park and memorial dedicated to the victims of the deadliest school massacre in American history.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

The trials and tribulations of marking Poe's grave.

The most visited, and possibly most controversial, museum in Germany.

Super-heavy Nazi architectural experiment.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

The prototype for all Nazi concentration camps.

This centuries-old tree tells an unusual tale of vegetation and fertility in the desert.

One of the largest collections of holy relics in the country.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Astounding collection of coin-operated games and automata.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.