3,000 market stands in five former Zeppelin hangars.

The reconstruction of this prominent building fulfilled a long-written command.

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.

A massive tribute to Estonian history and culture.

The Guardian of Tallinn.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

A unique sculpture calls the outside of this steakhouse home.

"There's nothing there," and other lies the KGB told us.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The walls of the iconic dome are hollow and have a secret stairway.

Largest Roman Catholic church in North America.

A museum dedicated to exhibiting remarkable outsider art.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

This statue honors the author's groundbreaking family story.

Memorial to the father of the Republic of China.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A fortified city, home to a remaining population of five families

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Founded as a refugee camp, now a popular tourist spot.

The oldest known university in the world is in Fez, Morocco.