Space-age monument to an early 20th-century uprising.

The stones of this formerly witch-obsessed castle were used to build a church.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

Macabre museum devoted to historical Viennese murders.

This museum promotes informed contraception by documenting its often secret past.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

Curios, scientific antiques, oddities for sale.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.