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

A little church on a tiny island looks like something from a fairy tale.

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

Palace where the nearly un-killable Rasputin was murdered.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Unusual building appears to be haphazardly built from randomly piled bricks.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

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.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This modest marker near Notre Dame identifies the very center of Paris.

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

The Guardian of Tallinn.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

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