The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Snack on a partially gestated duck egg.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

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

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Meet the bronze beloved pet to a family of famous peeing statues.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Brussels' favorite peeing boy has a sister.

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

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

North Korea's massive art and propaganda factory now has an official gallery space in Beijing.

This probably wasn't what Mao had in mind.

The most famous location in China was home to whole dynasties worth of imperial rulers.

The embalmed remains of the communist leader lie within a custom crystal coffin.