This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

With over 10,000 lights, this engineering marvel lights up the city after dark.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

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.

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

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

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

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

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This snug medieval lane is one of the narrowest streets in the world.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Romania's triumphal arch looks out over Bucharest.

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

This once-derelict building is now one of the most beautiful bookstores in the world.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

A pair of connected skyscrapers form this symbolic gateway.

A Serbian church lit by chandeliers made of weapons.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.