One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Museum dedicated to the terror regimes of Hungary.

This collection of neon icons is preserving Arizona's history, one sign at a time.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A nostalgic bibliographic gem.

Home to items never before seen by the public.

One of the largest trees of its kind in California.

The classic Atari game's iconic aliens have invaded downtown San Diego.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A popular winter vacation destination for migrating monarch butterflies.

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

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A "sinister, whimsical, tacky, and really orange" public art installation hidden under a Seattle bridge.

A wall of chewing gum moonlights as collective art.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A giant Troll lurks under one of Seattle's oldest bridges.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A modern mechanical planetary system, part of a 10,000 year clock.