The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

An isolated village literally built into the crevices and rock formations of a mountain.

Rare and wonderfully wormy cadaver art captured in brass for centuries.

An alchemist's "magic door" stands in the middle of a Roman park.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Three bridges straddle a stream, one stacked upon the other.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The remains of an entire Roman city can be explored in this interactive museum.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Home to the most complete dodo remains known - one head, and one foot.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

One man's lifelong obsession with death.

Enter the cabin of a life-sized Hindenburg replica.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

This massive water spout has been luring visitors for hundreds of years, some to their death.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

Recently restored menagerie of Victorian-era beasts.

Retirement home for giant obsolete machines.

An unusual number plate signifies the building's saucy past.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

A passage grave used in neolithic rituals.