The world's first ice hotel is still one of the most elaborate and beautiful.

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

This lake-bound geographical marker sits at the point where three European countries intersect.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

The world's northernmost ice hotel.

The world's most charming instant portrait studio also happens to be its smallest.

A modern day curiosity cabinet.

A walkable map of the world, made from soil and stone by one man.

Private collection of art inspired by cabinets of curiosity.

One poet's handmade, anachronistic home.

This Southern Californian Conservation Center is home to singing and howling apes.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

A basement full of treasures lies beneath this inn that has worn many hats throughout its 140+ years.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

Once the gateway to the utopian dream-village of a Civil War embalmer.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

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

The world's largest rotating world.

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

The world's third-largest scale model of the planets.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

Acres of natural wonders left behind by a socialite-turned-gardener.

The world's largest model of our planetary system.