At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

Despite dreams of constructing this fairytale mansion, Albert Gotthard Nestor Cedergren never saw its completion.

A traveling Bronze Age sacrificial stone that was used to honor elves, fairies, and other woodland spirits.

Crystal chandeliers brighten up this dark underpass.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

One of the world's first dedicated bank buildings in the world is now the oldest one.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

Featured in one of the most iconic scenes in cinema history.

One of the world's oldest continuously operating meteorological stations sits on a hill in Stockholm.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

A colossal statue with a controversial past, forgotten for more than 30 years.

The reconstruction of this prominent building fulfilled a long-written command.

Remnants of the city's Soviet history hover over this modern fast-food outlet.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

Things aren't quite what they seem at this mind-bending museum.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

An abandoned masterpiece of Soviet Brutalist architecture.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

This micro-nation may be some sort of prank, but its constitution sure seems official.