The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

A diminutive statue that was inspired by the sculptor's own daughter.

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

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

The metal leaves on this tree are engraved with the names of Holocaust victims.

Time stands still at this serene burial ground in the center of Budapest.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

This floating sculpture of ice is a poignant reminder of nature's power.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

The world's first combination ski slope and power plant.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

This California museum is home to one of the largest collections related to the 'Treasure Island' author.

The rusting remains of the largest assembled WWII fleet on the West Coast.

The capitol city's oldest existing cemetery.

Art Deco stylings conceal the true nature of this bridge.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

This neo-Gothic former auto showroom is one of the few remaining reminders of Brooklyn's "Automobile Row."

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.