Swedish skyscraper with a 90° twist.

Copenhagen's celebrated theme park and gardens.

This modern arts center is built around a gem of late-Baroque architecture.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Brussels' favorite peeing boy has a sister.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

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

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

These azure waters were thought to lead to the Mayan Underworld.

Mexico's astounding mummy museum with "the world's smallest mummy."

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

Frida Kahlo's childhood home, now a museum of her life and works.

The only castle in North America to ever house European sovereigns.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

66,000 pieces of art, donated by one of the world's richest men.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.