Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This unattributed sculpture in Amsterdam is hiding in plain sight.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The world's only museum devoted to the wonders of fluorescence.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Hans Christian Andersen for the postmodern world.

Tiny Swedish village with a distinct local phenomenon known as an "Elk Shower."

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

Locals perched on icy thrones brave frigid temperatures during this bizarre winter tradition.

A Bronze Age stone ship said to be the grave of the mythical founder of Gotland.

This little gallery is devoted to one small town's passion for a very special cheese.

The world’s largest knitted mitten is displayed in one of Sweden’s smallest Arctic villages.

Ancient stone graves shaped like ships provided a Viking-like burial to carry the dead to the afterlife.

A botched 18th-century canal silenced one of Sweden's most magnificent waterfalls.

A Japanese video game arcade hides in the back of a Swedish pool hall.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

Ancient burial grounds of the wealthy.

Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.