Model Trains and Much More in Hamburg.

An impressive monument to Poland's independence.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

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

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

An alien church provides much needed silence in the midst of a Finland shopping center.

An abstract monument to a symphonic composer.

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

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Climb inside an iron crystal magnified 165 billion times its normal size.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Brussels' favorite peeing boy has a sister.

A Turkish monastery tucked into a cliff wall.

Large miniature theme park with 100-plus models.

A marvel of Byzantine engineering under the streets of Istanbul.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

When you've got to go, you've got to go.