Whitewashed mosque contains the world's largest carpet.

Skyscraper powered by wind turbines attached between its towers.

A small island hides in plain sight on Austin's Lady Bird Lake.

The once highest point in China blends symbolic design with a kick of adrenaline.

Not the result of an accident, hurricane, or aliens, this is an eye-popping tribute to the Melbourne tram.

A colorful street named for the legendary Australian rock band.

You'll find the little birds tucked within the rocks of this Australian beach.

Is there such thing as too many fruit bats? Not anymore.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

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

Budapest's Communist-era statues, banished to the suburbs.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Museum dedicated to the terror regimes of Hungary.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

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

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Ship-sized kinetic sculptural fantasy.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Pop culture has helped to keep this iconic British building from being destroyed.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

Giant, friendly pelicans in Central London, the most unlikely of places.