The celebrated eyesore created by starry-eyed sweethearts.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

A Gothic cathedral created from volcanic rocks.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Ancient paintings known as the "Sistine Chapel of Cave Art."

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Inside features a display of how artistic crucifixes transformed throughout the centuries.

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.