Romania's triumphal arch looks out over Bucharest.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This once-derelict building is now one of the most beautiful bookstores in the world.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

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

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

The former headquarters of history's oldest megacorporation.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A uniquely preserved neo-Gothic church that is now home to a collection of art and woodcarvings.

The cutest way to stay safe in traffic.

This is the oldest Roman-made bridge in the city still existing in its original state.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

This medieval city gate is now a blend of the past and the modern world.

The oldest volcanology research center in the world.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.