These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

This historic stone bridge has an entire neighborhood clinging to its sides.

A stairway to heaven, or to nowhere at all.

This "floating railway" is one of the world's oldest monorail systems.

"The most colorful grottoes of the world.

Terrifying derelict military hospital once housed a recuperating Hitler.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

An intricate and amazing house built by architect Karl Junker.

When the rain falls, this drain system turns into a musical instrument.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Ruins of a German Castle on top of a towering stone pillar.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

A colorful "forest" made entirely from three tons of recycled plastic waste.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

Where layer cakes tower above one’s head and there is never a shortage of icing.

At a museum of everyday objects, it is the act of collecting that is really on display.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

A quirky and charming restaurant founded by artists.

Diego Rivera's massive tiled fountain and failed infrastructure project.