Baroque celebration of the end of the Great Plague of Vienna.

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

The celebrated eyesore created by starry-eyed sweethearts.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This Parisian gem is one of the most incredible ethnographic museums in the world.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

This former Nazi labor camp is now a poignant memorial, complete with giant Soviet-style monuments.

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

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

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

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

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

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

Water and windows define this defensive Italian well.

A 100-plus-year-old mill transformed into a hotel and restaurant.

A narrow strip of land is home to the tallest migrating dunes in Europe.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Lithuania's outdoor sculpture trail of wooden folk art.

For the last century, this international border within a small town has appeared and disappeared various times.