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

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

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Copenhagen's celebrated theme park and gardens.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

One of the world's tallest statues is also one of its most hated.

Mostly underground in the old days Back in the USSR, today the Beatles beckon to tourists from a wall sculpture out in the open in central Russia.

A model village fit for an emperor.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

Monastery complex at the location where bodies of the executed Romanov royal family were discovered.

Gargantuan home of Russian science.

Russia's giant concrete QWERTY keyboard is likely the largest in the world.

Church built on the site where the last tsar of Russia and his family were killed.

The tallest hotel in Europe.

Dozens of padlock-trees along the Moscow River.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

Moscow's imposing monument to the Space Age.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.