Places Jan Claus Di Blasio Wants to Go

A giant owl named Rocco oversees mythical woodland creatures along these charming mountain trails.

These ruins by the Dead Sea is where John the Baptist met his untimely end.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

The site of the first battle of World War II.

This Italian museum is a one-of-a-kind celebration of printing and type.

Explore the quarry where the marble was sourced for Michaelangelo's David.

Italy's curious field of mud volcanoes is named for being both gross AND salty.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This elderly couple's hand-picked collection of rare gems is one of the finest in all of Iceland.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This rusting remnant of the local herring industry is being given a second life.

This tiny museum's sizable collection is jammed into a former underground public toilet.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

An encyclopedic collection of mammal penises.

Inside this museum, visitors venture through ghost stories entrenched in Icelandic folklore.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A lonely beacon, precariously perched atop a remote sliver of rock.

The summer tourists on these cliffs are thousands of seabirds.

A popular Icelandic children's story comes to life inside this cave.

Eerie ruins of an abandoned medieval fishing village crumble atop an unforgiving stretch of earth.