Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A striking symbol of the Bulgarian capital.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Special benches that play Chopin's music are scattered throughout his native city.

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

A huge wooden clock that is so beautiful its creator was forcibly blinded.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

340-foot statue built to honour the Heroes of the Soviet Union.

Stockholm's narrowest alley is barely over two feet wide.

Frequent fliers welcome in this airplane hotel.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Stockholm's deepest subway station is also a stunning ecological wonder.

It houses the remains of a 17th-century version of the Titanic.