Enormous lake at the bottom of a unique cave system.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A recreated sign from the movie Jumanji has become a makeshift tribute to the film's late star.

Train tunnel running underneath Quebec City.

Beautiful natural falls where Satan once ruined a pot of beans.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The fairy tale castle of the "fairy-tale king."

Open-air museum with a large collection of Soviet-era statues.

Home to items never before seen by the public.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This mural celebrates the early integration of a New Hampshire baseball team.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

This historic mini-suspension bridge was swept away once but is now here to stay.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

One New Hampshire alleyway has become home to a public gallery of feline art.

A former zoo turned public park, where visitors can hang out in the old animal cages.