The beautiful baroque library of the Hapsburg empire.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The final resting place for the remains of 143 Habsburg royalty.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Quite simply the largest tree in the world (by volume).

Sid Vicious famously punched a hole in the wall of this iconic music venue.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This abandoned, partly demolished building is now home to beautiful graffiti and murals.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

This isolated island is often capped by its own fluffy cloud.

This aromatherapy shop and mini-museum cofounded by the Sigur Rós frontman documents Icelandic history through scents.

Iceland's tribute to its thankless civil servants.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

A tiny park off the beaten path covered in ingenious scrap metal sculptures.

Haven for steampunks.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."