An enormous, inside-out glass globe built in 1935.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

Eat a tasty meal in the house where John Steinbeck was born.

Burbling away in refrigerators are 105 sourdough starters from around the world.

The canine-themed book collection claims to be Europe's largest dog library.

Check out a shovel along with your Shakespeare.

The largest cactus farm in Africa.

Europe's largest collection of matchbox designs is a fascinating exploration of the cultural history of the world.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

Tile mosaics and quotes from Pablo Picasso add an artistic flair to these bus stop benches.

This quirky outpost and gallery inside a former church is an unexpected trove of handcrafted art.

A World War II officers' club features Old West murals painted by German POWs.

Minimalist modern art on a repurposed military base in rural Texas.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

You can row a boat through this ancient underground reservoir.

This former coal gasification plant found a curious second life as a popular public park.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Apartment complexes built into huge repurposed natural gas tanks.

A massive Montreal stadium that has seen nothing but trouble since its inception.

What once sat in the world’s spotlight is today a largely disused ghost complex.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.