The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

An endless sea of white conical domes.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

An intricately carved Viking church overlooks a glistening fjord.

Natural time capsule containing an alien ecosystem.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Hindu temple of the dead home to hundreds of long-tailed macaques.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

After a 2004 tsunami, this stranded boat was left in place.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

The home for all things Kool-Aid offers everything except a chance to actually enjoy the drink.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

One of the world's longest murals depicts the history of diversity in Los Angeles.

A music-filled, booze-soaked oasis in the desert.

A fake town founded by Western movie stars is now becoming a hip desert community.

The most magnificent bottle house in a town strangely full of them.