Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

A swath of France so devastated by war it is still forbidden to go there.

This sculpture garden is a serene oasis wedged in the middle of a busy highway.

Underwater roads undetectable from the surface used for escape routes from foreign invaders.

A tiny traditional village keeps an ancient method of beekeeping alive.

Launch site for nuclear war against Western Europe.

What almost started out as a spite house became an eccentric's found object masterpiece.

You would never guess that before World War II this lonely field was a bustling German city.

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

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

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

Open-air museum with a large collection of Soviet-era statues.

A memorial to the murdered Jews of Kaunas.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

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

This unique railroad museum secretly contains the history of Poland rebuilding itself from the inside-out.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

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

A hidden art gallery in an abandoned Warsaw fort.