Indents in the pavement are all that remain from a grisly death machine in Paris.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Elaborate tile work in this railway station tells the story of Portugal.

A hidden three-foot-wide house separates these two regal churches.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This fountain was once heralded as the largest in the world.

Singapore's oldest Hindu temple.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

One of the largest Chinese cemeteries outside of China spent years overgrown and forgotten.

This rare wildlife haven in Singapore feels like you're in the tropical rainforest.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.