Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A black cat protests the City Guild in Riga's Old Town.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

The oldest housing complex in Riga is a mini timeline of architectural trends.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Over time, this castle grew to encompass the entire island.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

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

A unique, playful portrayal of Jesus as a backpacking traveler.

A wide array of locomotives call this outdoor museum home.

Rub it for a bit of good luck.

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

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

An abandoned masterpiece of Soviet Brutalist architecture.

A miraculous three-handed portrait of a saint can be found inside this church.

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

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

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

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

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

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Once a year, local students "clean" this statue with a champagne shower.

A historic scientific breakthrough that crosses nine borders.