This Danish castle is supposedly haunted by a woman too independent to not be a witch.

An Elvis superfan built Denmark's own version of Graceland.

Long before ultrasounds and modern testing, medical specimens like these conjoined twins helped physicians learn about congenital anomalies.

The largest collection of hair jewelry in Europe reminds you how creepy 19th-century love was.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

When this Iron Age bog body was discovered in 1835, it was thought that she had died recently.

A public display of random paleontology.

Nordic giants resurrected from the sea and restored to their former greatness.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Colorful and chaotic stacked hotel in North Holland.

An artist has turned what most people would consider a bathroom nightmare into a work of political art.

Absolutely no saxophones in the library.

The fading, forgotten remains of a once bright and booming factory.

This old school, eccentric, and independent video rental store refuses to die.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

“Invented in Key West, Perfected in Brooklyn."

An unassuming stone building houses New York City's oldest seismic station almost 30 feet below the Bronx.

This tiny store is your one-stop shop for all sorts of rare and wonderful buttons.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

An unassuming secret door once led to a legendary watering hole.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A celebration of capitalism in Midtown.