Three bridges and one giant canyon make up this fantastic Spanish settlement.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

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.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Theme park featuring miniature replicas of European monuments.

The world's tallest boat lift stands as a massive piece of industrial tourism.

A moving memorial to the fallen and missing from WWI trenches.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Walk through Czech history in Prague's largest graveyard.

Macabre astrological automaton clock dating to the late 1400s.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

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 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

A collection of early 19th century trams set in a reconstructed period village.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This historic abandoned train station looks like a stop for ghost trains.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

Go deep down into the earth to experience the world of Welsh coal miners.