For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

An intricately carved Viking church overlooks a glistening fjord.

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

A school teacher's massive and terrifying self-built castle.

Unique antiquarian shop specializing in globes, maps, and prints.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

In which a local geological marvel becomes a quaint roadside attraction.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

A unique sculpture park that specializes in the huge and bizarre.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

The site of one of history's most indelible and horrific tragedies.

One man's homage to the sun continues to grow like a glass fractal.

A one-of-a-kind collection of a unique medium.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

Electrical curiosity museum housed in an old transformer station.

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

Bridge that died in war and was resurected.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

What happens when you cross a mayor and a painter?

An ancient artistic garden parlor full of hidden water wonders.