Places dawnrfifer Wants to Go

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

New fungal and bacterial species call this deadly lake home.

An antiquated German apothecary on Chicago's North Side.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A theme park made of glass, from the gleaming books on the shelves to the crystal fish in the mirror lake.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

To literally keep their waste out of their own backyards, the citizens of this English city built an impressive sewer system that is still in use today.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

This charmingly homemade amusement park has been growing for 40 years.

An institution that preserves the history of institutionalization.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

World's only nuclear reactor operated by liberal arts undergraduates.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

From mining complex to industrial exhibition, this museum once played a major part in the X-Files.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Antiques shop filled with all manner of curious collectibles.