Huge stairway leads to this massive gallery.

Rubbing the buttons along this statue's coat is considered good luck.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

Visitors can sit and study the board with this Estonian chess legend and International Grandmaster.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

Special benches that play Chopin's music are scattered throughout his native city.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

Ancient serpentine sacrifice holder that has stood the test of time.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

Where a Japanese government official issued transit visas to Jews fleeing from Nazi-occupied Poland.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

The oldest funicular in Lithuania has been climbing this steep hill since 1931.

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

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

A wealthy aristocratic family built this Disney-worthy, fairy-tale castle.

Home of Howard Hughes' Spruce Goose.

The wooden airship was the largest flying boat ever built.

Post office plaque commemorates local resistance to a cult invasion.