Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

The 20-mile causeway that separates the Netherlands from the sea.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

Amsterdam's former hotspot for public executions and dissections.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Colorful and chaotic stacked hotel in North Holland.

This "floating railway" is one of the world's oldest monorail systems.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Take a walk in a recreation of ancient Rome.

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

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

The world's most important buildings shrunk to a tiny size.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

Dine amidst exotic plants at this former royal greenhouse.

An epic sculpture depicting a wagon and straining oxen.

A shrine-like museum entirely dedicated to soccer superstar Cristiano Ronaldo.

These small, triangular, colorful houses are a staple of Madeira Island.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

An eerie former warehouse turned cistern turned movie set.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The gaunt visage of this angular Christ giant is enough to put the fear of God into all who see it.

Where sweethearts leave their love locks in the Uruguayan capital.

The remains of Uruguayan hero José Artigas lie beneath a monument in Montevideo’s main square.