Now harmless, this looming post struck fear into the heart of medieval troublemakers.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

Model Trains and Much More in Hamburg.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”

Whitewashed mosque contains the world's largest carpet.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This indoor ski resort has a mountain contained inside a mall.

Single runway interrupted by a busy road that cuts across its middle.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

A 16th-century Andalusian palace.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The world's largest wooden structure.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.