Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

A startling, centuries-old subterranean marvel hides in plain sight.

The abandoned site of the Beatles spiritual awakening and subsequent revolt.

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.

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

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Mountain where Jesus was first tempted by the Devil.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

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.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Two giant painted cooling towers make for one of the world’s most epic bungee jumps.

Nelson Mandela lived here with his family from 1946 until his arrest in 1962.

A blooming house of worship for the masses.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.

A deeply beautiful 15th-century stepwell with a tragic story.

This 16th-century mosque is the hallmark of the African architectural legacy in India.

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

This historic Victorian hotel has a scandalous history of affairs and murder.

First flying reptile discovered in British Columbia was for years forgotten in a cabinet.