Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The narrowest house in America is seven feet of pure spite.

Once a year, local students "clean" this statue with a champagne shower.

The first designer power line in Estonia.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

Its collection offers a glimpse into the Russian Old Believers' centuries-old way of life.

A historic scientific breakthrough that crosses nine borders.

Historic slum of Tartu.

This unique eatery offers a taste of Estonia's "Onion Route."

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

This free museum is building a collection of books that are banned, censored or burnt around the world.

Abandoned Soviet base once stocked with short and medium range missiles pointed at western Europe.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

The labyrinthine home of the National Archives of Estonia is an experimental blend of architecture, art, and history.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

Relics from an era long gone, sit idle outside this Estonian museum.

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

Mysterious craters may have been home to an ancient cult.

This Latvian shot factory is still used twice a year to manufacture bullets the old-fashioned way.

This wooden recreation of a 9th century lake village looks as though it was built yesterday (which it relatively was).

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

The Great Fire of London and the regulation of one-way streets both started in this alley.