Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Stunning examples of Russia's 18th-century wooden architecture.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

One of England's most famous churches hides a pair of little known architectural treasures.

An intricately carved Viking church overlooks a glistening fjord.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Natural cathedral designed by Italian artist Giuliano Mauri.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

These medieval skyscrapers dominate the skyline of this small Tuscan town.