This former hostel is now an art gallery and a memorial for 15 backpackers who lost their lives to a tragic act of arson.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Sculpture garden of religious statues made it through Soviet rule.

A narrow strip of land is home to the tallest migrating dunes in Europe.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

A Jenga-style cylindrical tower of books that appears to go on forever.

This Gothic-style church is reputedly built atop the remains of one of Jesus's apostles.

An abandoned monument remembering the "Pančevo Holocaust" now stands as a shadow of its former self.

The true meaning behind this sculpture remains unknown.

The place where Czar Peter I of Russia resided in 1697 during his Grand Embassy.

The oldest statue in the Netherlands has survived relocation, bombardment, and burial.

The world's tallest statue of a woman wields the world's tallest sword and is at risk of toppling over.

Medicinal spa created with the discharge from a geothermal energy plant.

One of downtown Berlin's last reminders of its Communist past.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Hidden underground, a remarkable 10th-century bath complex survives virtually unaltered.

A Swiss amusement park entirely dedicated to the theory of ancient astronauts.

One of the most historical literary characters continues to stroll his hometown.

Its collection details the experiences of the largest Japanese community outside Japan.

The coffin-shaped church was once home to monks who slept in coffins.

The hollow trunk of this 650-year-old tree was used as a hideout by two Jewish brothers during World War II.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.