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

360° views of the city plus five floors of optical illusions and hands-on science.

Strange physical sensations and optical contradictions keep visitors coming back for more.

With over 5,000 champions, the Hall of Fame continues to draw amateur eaters.

Collective made up of artists, musicians, and activists.

Detroit housing collective working to create an "environment for revolutionary change."

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

Standing guard on top of an old, vacant ice cream shop.

Legs Inn provides Polish food, a cornucopia of Native American artwork, wood carvings, and mounted deer heads.

As its grandiose name implies, this wooden dome is unsurpassed in size.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

"The Most Boring Road in the State."

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.

Egyptian Revival obelisks still rise over the old mine shafts.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

The unusual medical inventions of the man who gave the world Corn Flakes.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

During WWII the U.S. Navy conducted primitive drone strikes on this Lake Michigan lighthouse.

A place for ship-lovers to watch the passage of freighters traversing the Great Lakes while learning about their history.

The world’s largest Masonic temple was saved by the White Stripes.

A lonely stone-sided terminal stands next to a grass airstrip on Michigan's Leelanau Peninsula.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.