St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Inside this Krakow church, an explosion of psychedelic color.

The youngest volcano in Central America.

A symbolic graveyard for the villages that perished during the Nazi invasion of Belarus.

Rent a barrel for a personal view of where the Baltic Sea meets the Gulf of Riga.

Surreal works of unreal stone and metal dot the landscape of this Latvian art park.

This seaside pine grove features an exclusive watchtower that presents amazing views.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

A small granite monument marks where the borders of three countries meet.

A series of playful yellow penguins share a serious message about the environment.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A church of bones, decorated with 40,000 human skeletons.

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

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

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

These crumbling Latvian forts make for some haunting seaside ruins.

This ornate church has survived Nazi and Soviet occupation, including a short stint as a Soviet-era gymnasium and cinema.

The mile-long pier stretches from a ruined fortress out into the Baltic.

Guests become prisoners on a visit to Latvian prison.

The Latvian city of Ventspils is filled with dozens of cow statues showcasing unique themes.

This impressively complicated radioastronomy research center was once a tool of Soviet spies.

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

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.