A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

This luxury hotel suite is located deep in the bowels of an old mine.

A peat bog in southern Sweden provides a cozy and photogenic home for junked Volvos, Saabs, and the occasional American muscle car.

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

The second oldest anatomical theater is housed in a museum of curiosities.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

A floating underwater hotel, created by a Swedish artist.

Micro-nation based around a nine-story high illegally built tower.

A Swedish farm is the world's only producer of the rare, creamy delicacy that is moose cheese.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

Crooked windswept pines give this old forest an enchanted and magical look.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.