One of Detroit’s oldest blues clubs stands in defiance of the passage of time and the city’s shifting fortunes.

Concrete igloos standing across from what remains of the Michigan Central train depot.

This feline raises a friendly paw at drivers barreling toward the freeway.

This former industrial site has transformed into a community sculpture garden that hosts monthly Full Moon parties.

A painted-over wall in Detroit originally built to segregate a black community from an adjacent white development.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

This elaborately-carved white marble fountain was built to stand outside the Detroit Opera House.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

Steadily reminding Czechia of its past.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

This doorless 20th-century elevator doesn't stop or slow down.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

When it opened during the final years of the embargo, all the drinks and cigars were free.

There’s a hidden military meme engraved on the World War II Memorial.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A tiny piece of the Moon is embedded in this stained glass masterpiece.