This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

This small chapel is built of human bones and decorated with a golden skeleton.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Lithuania's outdoor sculpture trail of wooden folk art.

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

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Ever-growing collection of devils in art.

A memorial to the murdered Jews of Kaunas.

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

The pyramid and dome deep inside the Dzūkija forest are believed to channel divine energy.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

This unusual geoglyph was built as a warning so low-flying aircraft wouldn't scare the zoo animals.