The footprint of a frustrated devil in Munich's Cathedral.

A German apartment building hosting as many trees as human occupants.

This German bone house contains the remains of some 20,000 souls.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

These 18th century gardens tell a rocky story of the son of Odysseus.

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

Super-heavy Nazi architectural experiment.

The patron saint of spinsters grasps a container of dried blood.

"The most colorful grottoes of the world.

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

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

A striking 12th-century-style castle built on the edge of a cliff.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

This honeycomb-textured tafone looks like a petrified troll head.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

A small island dotted with old, historic Finnish buildings.

This disused church, left to the elements of the Arctic Circle's forests is open for exploration.

A replica of the home of a famous fictional troll family.

Finnish lake, and scene of an infamous murder mystery.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

A collection of collections ranging from dentistry to minerals.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

Menacing or in memoriam, the Silent People and their meaning are left to interpretation.