Singapore's landscaping project is home to 18 incredible Supertrees.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The only subway station in the city that still makes use of gap fillers.

The highest natural point in New York City and all of the Atlantic coastal plain.

Dine on dumplings at the oldest dim sum restaurant in New York.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A wall of chewing gum moonlights as collective art.

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

A little barn in the middle of the city preserving Hollywood treasures since 1985.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A Texas-sized secondhand bookstore features 54,000 square feet of books, music, and media.

The 400-year-old remains of the samurai invasion of Korea.

The Shinsegae Department Store is the largest of its kind in the whole world.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

The burial ground of two kings and a queen is now a calm city park in the middle of bustling Seoul.

A 66-million-year-old rock formation stands tall over Mumbai, offering stellar city views.

New York City's only radical feminist independent bookstore.

Salute the leader of the proletariat.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).

This futuristic building is yet another architectural wonder in Dubai.