Volcanic irregularity? Odd erosion? Alien eggs? Local legends compete to explain these strange orbs.

The Nazis lost more men trying to take this Russian-held Stalingrad apartment block than they did when taking Paris.

The world's tallest statue of a woman wields the world's tallest sword and is at risk of toppling over.

This controversial monument was designed to lionize the Red Army, but also disheartened the Latvian people.

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

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

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

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

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

3,000 market stands in five former Zeppelin hangars.

A surreal statue honoring Prague's favorite literary son.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

South Korea's only sex-themed park.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

These engineering masterpieces are a dominant feature of the Belfast skyline.

This massive monument has been telling the time for 150 years—at a slight angle.

It was once nicknamed "the most bombed hotel in Europe."